updated toc.yml and overview.md files

Author: mkaszewiak

docs/presentation/overview.md

@@ -51,6 +51,7 @@ This section provides how-to topics for working with presentation documents usin
 - [Open a presentation document for read-only access](how-to-open-a-presentation-document-for-read-only-access.md)  
 
 - [Retrieve the number of slides in a presentation document](how-to-retrieve-the-number-of-slides-in-a-presentation-document.md)  
+- [Add a transition to a slides in a presentation](presentation/how-to-add-transitions-between-slides-in-a-presentation.md)
 
 - [Working with animation](working-with-animation.md)  
 

docs/toc.yml

@@ -76,6 +76,8 @@
         href: presentation/how-to-retrieve-the-number-of-slides-in-a-presentation-document.md 
       - name: Structure of a PresentationML document
         href: presentation/structure-of-a-presentationml-document.md
+      - name: Add a transition to a slides in a presentation
+        href: presentation/how-to-add-transitions-between-slides-in-a-presentation.md
       - name: Working with animation
         href: presentation/working-with-animation.md
       - name: Working with comments