Update README.md

Author: Radovan Janjic

README.md

@@ -8,12 +8,15 @@ It can:
 - Execute arbitrary queries and return the results in arrays
 - Retrieve the columns of a table
 - Execute UPDATE or INSERT queries from parameters that define the tables, fields, field values and conditions
+- Multiple INSERT / UPDATE
 - Count the number of rows of a table that match a given condition
 - Get the next value of an auto-incremented table field
 - Delete table rows that match a given condition
 - Export / Import table to/from CSV files
+- Create table from CSV file
 - Export query to SCV file
 - Do str_replace in given table for defined columns
 - Rename / Copy / Truncate / Drop table
 - Get database size
 - Log queries / errors
+- Errors backtrace