DOCSP-29626: move whats new in nav + new anchor (#98)

Author: rustagir

source/index.txt

@@ -9,11 +9,11 @@ MongoDB C# Driver
    /previous-versions
    /quick-start
    /quick-reference
+   /whats-new
    /usage-examples
    /fundamentals
    API Documentation <{+api-root+}/R_Project_CSharpDriverDocs.htm>
    /compatibility
-   /whats-new
    /issues-and-help
    /faq
    MongoDB Analyzer <https://www.mongodb.com/docs/mongodb-analyzer>
@@ -43,6 +43,12 @@ Quick Reference
 See driver syntax examples for common MongoDB commands in the
 :ref:`Quick Reference <csharp-quick-reference>` section.
 
+What's New
+----------
+
+For a list of new features and changes in each version, see the :ref:`What's New <csharp-whats-new>`
+section.
+
 Usage Examples
 --------------
 
@@ -80,12 +86,6 @@ Compatibility
 For the compatibility charts that show the recommended {+driver-short+} version
 for each MongoDB Server version, see :ref:`csharp-compatibility-tables`.
 
-What's New
-----------
-
-For a list of new features and changes in each version, see the :doc:`What's New </whats-new>`
-section.
-
 Issues & Help
 -------------
 

source/whats-new.txt

@@ -1,3 +1,5 @@
+.. _csharp-whats-new:
+
 ==========
 What's New
 ==========