[Word] (Canvas) Note how to use the UI to add shapes (#1031)

* [Word] (Canvas) Include instruction about how to use the UI to add shapes

* Apply suggestion from @AlexJerabek

Co-authored-by: Alex Jerabek <38896772+AlexJerabek@users.noreply.github.com>

---------

Co-authored-by: Alex Jerabek <38896772+AlexJerabek@users.noreply.github.com>

Author: ElizabethSamuel-MSFT

samples/word/45-shapes/manage-canvases.yaml

@@ -124,7 +124,8 @@ script:
 template:
     content: |-
         <section class="ms-Fabric ms-font-m">
-            This sample demonstrates how to work with canvases.
+            This sample demonstrates how to work with canvases. A canvas can be useful for organizing several shapes and connecting them. Diagrams and flowcharts are examples where using a canvas could be appropriate.
+          <p>To learn how to add shapes to a drawing canvas using the Word UI, see <a href="https://support.microsoft.com/office/348a8390-c32e-43d0-942c-b20ad11dea6f" target="_blank">Add a drawing to a document</a>. Adding shapes to a canvas with the Word APIs is not supported.</p>
         </section>
         <section class="ms-Fabric samples ms-font-m">
             <h3>Try it out</h3>