Fix some typos and clarify a couple of sentences (#128)

Author: leo-bogastry

README.md

@@ -25,7 +25,7 @@ need to be installed:
 * The `cmtc` Course Management Tools Client CLI
 * An IDE
 
-The following sections detail how these components.
+The following sections detail how to install these components.
 
 ### Install Coursier
 
@@ -122,7 +122,7 @@ Exercises in repository:
 
 #### Verifying the course installation
 
-Verify that the the course was installed correctly by launching `sbt test` in the root folder of the
+Verify that the course was installed correctly by launching `sbt test` in the root folder of the
 course exercises. You should see the following output:
 
 ```bash
@@ -199,7 +199,7 @@ As can be seen in the above output, `cmtc` installed the course in the `/Users/e
 
 #### Verifying the course installation
 
-Verify that the the course was installed correctly by launching `sbt test` in the root folder of the
+Verify that the course was installed correctly by launching `sbt test` in the root folder of the
 course exercises. You should see the following output:
 
 ```bash
@@ -228,13 +228,13 @@ org.lunatechlabs.dotty.sudoku.ReductionRuleSuite:
   + Applying reduction rules should eliminate values in isolated complete sets from occurrences in other cells (First reduction rule) 0.045s
   + Applying reduction rules should eliminate values in isolated complete sets of 5 values from occurrences in other cells (First reduction rule) 0.001s
   + Applying reduction rules should eliminate values in 2 isolated complete sets of 3 values from occurrences in other cells (First reduction rule) 0.001s
-  + Applying reduction rules should eliminate values in shadowed complete sets from occurrences in same cells (Second reduction rule) 0.001s
-  + Applying reduction rules should eliminate values in shadowed complete (6 value) sets from occurrences in same cells (Second reduction rule) 0.001s
+  + Applying reduction rules should eliminate values in shadowed complete sets from occurrences in the same cells (Second reduction rule) 0.001s
+  + Applying reduction rules should eliminate values in shadowed complete (6 value) sets from occurrences in the same cells (Second reduction rule) 0.001s
 SLF4J: A number (1) of logging calls during the initialization phase have been intercepted and are
 SLF4J: now being replayed. These are subject to the filtering rules of the underlying logging system.
 SLF4J: See also http://www.slf4j.org/codes.html#replay
 org.lunatechlabs.dotty.sudoku.SudokuDetailProcessorSuite:
-  + Sending no updates to a sudoku detail processor should result in sending a SudokuDetailUnchanged messsage 0.007s
+  + Sending no updates to a sudoku detail processor should result in sending a SudokuDetailUnchanged message 0.007s
   + Sending an update to a fresh instance of the SudokuDetailProcessor that sets one cell to a single value should result in sending an update that reflects this update 0.002s
   + Sending a series of subsequent Updates to a SudokuDetailProcessor should result in sending updates and ultimately return no changes 0.003s
 [info] Passed: Total 11, Failed 0, Errors 0, Passed 11

exercises/exercise_000_sudoku_solver_initial_state/README.md

@@ -55,7 +55,7 @@ SLF4J: now being replayed. These are subject to the filtering rules of the under
 SLF4J: See also http://www.slf4j.org/codes.html#replay
 [info] SudokuDetailProcessorSpec:
 [info] Sending no updates to a sudoku detail processor
-[info] - should result in sending a SudokuDetailUnchanged messsage
+[info] - should result in sending a SudokuDetailUnchanged message
 [info] Sending an update to a fresh instance of the SudokuDetailProcessor that sets one cell to a single value
 [info] - should result in sending an update that reflects this update
 [info] Sending a series of subsequent Updates to a SudokuDetailProcessor
@@ -65,8 +65,8 @@ SLF4J: See also http://www.slf4j.org/codes.html#replay
 [info] - should Eliminate values in isolated complete sets from occurrences in other cells (First reduction rule)
 [info] - should Eliminate values in isolated complete sets of 5 values from occurrences in other cells (First reduction rule)
 [info] - should Eliminate values in 2 isolated complete sets of 3 values from occurrences in other cells (First reduction rule)
-[info] - should Eliminate values in shadowed complete sets from occurrences in same cells (Second reduction rule)
-[info] - should Eliminate values in shadowed complete (6 value) sets from occurrences in same cells (Second reduction rule)
+[info] - should Eliminate values in shadowed complete sets from occurrences in the same cells (Second reduction rule)
+[info] - should Eliminate values in shadowed complete (6 value) sets from occurrences in the same cells (Second reduction rule)
 [info] CellMappingSpec:
 [info] Mapping row coordinates
 [info] - should result in correct column & block coordinates

exercises/exercise_000_sudoku_solver_initial_state/src/test/scala/org/lunatechlabs/dotty/sudoku/ReductionRuleSuite.scala

@@ -128,7 +128,7 @@ class ReductionRuleSuite extends munit.FunSuite with SudokuTestHelpers {
   }
 
   test(
-    "Applying reduction rules should eliminate values in shadowed complete sets from occurrences in same cells (Second reduction rule)") {
+    "Applying reduction rules should eliminate values in shadowed complete sets from occurrences in the same cells (Second reduction rule)") {
     val input = stringToReductionSet(
       Vector(
         "12  5 789", // (1,2,7,8) shadowed & complete
@@ -160,7 +160,7 @@ class ReductionRuleSuite extends munit.FunSuite with SudokuTestHelpers {
   }
 
   test(
-    "Applying reduction rules should eliminate values in shadowed complete (6 value) sets from occurrences in same cells (Second reduction rule)") {
+    "Applying reduction rules should eliminate values in shadowed complete (6 value) sets from occurrences in the same cells (Second reduction rule)") {
     val input = stringToReductionSet(
       Vector(
         "123456 89", // (1,2,3,4,5,6) shadowed & complete

exercises/exercise_000_sudoku_solver_initial_state/src/test/scala/org/lunatechlabs/dotty/sudoku/SudokuDetailProcessorSuite.scala

@@ -12,7 +12,7 @@ class SudokuDetailProcessorSuite extends munit.FunSuite with SudokuTestHelpers {
     testKit.shutdownTestKit()
   }
 
-  test("Sending no updates to a sudoku detail processor should result in sending a SudokuDetailUnchanged messsage") {
+  test("Sending no updates to a sudoku detail processor should result in sending a SudokuDetailUnchanged message") {
 
     val probe = testKit.createTestProbe[SudokuDetailProcessor.Response]()
     val detailProcessor = testKit.spawn(SudokuDetailProcessor[Row](id = 0))

exercises/exercise_001_dotty_deprecated_syntax_rewriting/README.md

@@ -87,7 +87,7 @@ where possible standard options include:
               -source  source version
 ```
 
-We will add some code that trigger a number of compiler warnings which can
+We will add some code that triggers a number of compiler warnings which can
 be corrected by the compiler's code rewriting capabilities.
 
 Add the following code snippet to the `src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala` source code file:
@@ -147,7 +147,7 @@ wildcard import syntax from using an asterix (`*`) instead of an underscore (`_`
 - Add the "-rewrite" option to have the compiler apply all the reported
   changes.
 - The end result should be that, after the compiler has applied its rewrites, the source code
-  compiles clean.
+  compiles successfully.
 - Remove the `-rewrite` from `scalacOptions` in the sbt build definition.
 - Checkpoint the current state of your code by commiting the changes to git:
 

exercises/exercise_001_dotty_deprecated_syntax_rewriting/src/test/scala/org/lunatechlabs/dotty/sudoku/ReductionRuleSuite.scala

@@ -128,7 +128,7 @@ class ReductionRuleSuite extends munit.FunSuite with SudokuTestHelpers {
   }
 
   test(
-    "Applying reduction rules should eliminate values in shadowed complete sets from occurrences in same cells (Second reduction rule)") {
+    "Applying reduction rules should eliminate values in shadowed complete sets from occurrences in the same cells (Second reduction rule)") {
     val input = stringToReductionSet(
       Vector(
         "12  5 789", // (1,2,7,8) shadowed & complete
@@ -160,7 +160,7 @@ class ReductionRuleSuite extends munit.FunSuite with SudokuTestHelpers {
   }
 
   test(
-    "Applying reduction rules should eliminate values in shadowed complete (6 value) sets from occurrences in same cells (Second reduction rule)") {
+    "Applying reduction rules should eliminate values in shadowed complete (6 value) sets from occurrences in the same cells (Second reduction rule)") {
     val input = stringToReductionSet(
       Vector(
         "123456 89", // (1,2,3,4,5,6) shadowed & complete

exercises/exercise_001_dotty_deprecated_syntax_rewriting/src/test/scala/org/lunatechlabs/dotty/sudoku/SudokuDetailProcessorSuite.scala

@@ -12,7 +12,7 @@ class SudokuDetailProcessorSuite extends munit.FunSuite with SudokuTestHelpers {
     testKit.shutdownTestKit()
   }
 
-  test("Sending no updates to a sudoku detail processor should result in sending a SudokuDetailUnchanged messsage") {
+  test("Sending no updates to a sudoku detail processor should result in sending a SudokuDetailUnchanged message") {
 
     val probe = testKit.createTestProbe[SudokuDetailProcessor.Response]()
     val detailProcessor = testKit.spawn(SudokuDetailProcessor[Row](id = 0))

exercises/exercise_002_dotty_new_syntax_and_indentation_based_syntax/README.md

@@ -11,7 +11,7 @@ Scala 3 introduces some new syntax which can be divided in two categories:
 
 The Scala 3 compiler is able to rewrite existing source code to a different syntax.
 Note that this rewriting is done one step at a time. In other words, rewriting to 
-the new significant indentation based syntax -and- to the new control structure syntax
+the new significant indentation based syntax _and_ to the new control structure syntax
 cannot be done in a single step.
 
 Changing the syntax is a reversible process (except that after going back to where
@@ -42,7 +42,7 @@ alternative syntax options.
   for a specific syntax rewrite.
 - Note that syntax rewrites have to be executed one at a time. Also, consecutive
   syntax rewrites have to be executed in a certain order. Make sure you understand
-  what's explained in the section named `Setting and Rewrites` at the end of the
+  what's explained in the section named `Settings and Rewrites` at the end of the
   [Optional Braces](https://dotty.epfl.ch/docs/reference/other-new-features/indentation.html)
   section in the Scala 3 reference documentation.
 

exercises/exercise_002_dotty_new_syntax_and_indentation_based_syntax/src/test/scala/org/lunatechlabs/dotty/sudoku/ReductionRuleSuite.scala

@@ -124,7 +124,7 @@ class ReductionRuleSuite extends munit.FunSuite with SudokuTestHelpers:
       assertEquals(applyReductionRules(input), reducedInput)
 
   test(
-    "Applying reduction rules should eliminate values in shadowed complete sets from occurrences in same cells (Second reduction rule)"):
+    "Applying reduction rules should eliminate values in shadowed complete sets from occurrences in the same cells (Second reduction rule)"):
       val input = stringToReductionSet(
         Vector(
           "12  5 789", // (1,2,7,8) shadowed & complete
@@ -155,7 +155,7 @@ class ReductionRuleSuite extends munit.FunSuite with SudokuTestHelpers:
       assertEquals(applyReductionRules(reducedInput1), reducedInput1)
 
   test(
-    "Applying reduction rules should eliminate values in shadowed complete (6 value) sets from occurrences in same cells (Second reduction rule)"):
+    "Applying reduction rules should eliminate values in shadowed complete (6 value) sets from occurrences in the same cells (Second reduction rule)"):
       val input = stringToReductionSet(
         Vector(
           "123456 89", // (1,2,3,4,5,6) shadowed & complete

exercises/exercise_002_dotty_new_syntax_and_indentation_based_syntax/src/test/scala/org/lunatechlabs/dotty/sudoku/SudokuDetailProcessorSuite.scala

@@ -11,7 +11,7 @@ class SudokuDetailProcessorSuite extends munit.FunSuite with SudokuTestHelpers:
   override def afterAll(): Unit =
     testKit.shutdownTestKit()
 
-  test("Sending no updates to a sudoku detail processor should result in sending a SudokuDetailUnchanged messsage"):
+  test("Sending no updates to a sudoku detail processor should result in sending a SudokuDetailUnchanged message"):
 
       val probe = testKit.createTestProbe[SudokuDetailProcessor.Response]()
       val detailProcessor = testKit.spawn(SudokuDetailProcessor[Row](id = 0))