(DOCSP-29259): What's New page (#76)

# Pull Request Info

[PR Reviewing
Guidelines](https://github.com/mongodb/docs-java/blob/master/REVIEWING.md)

JIRA - https://jira.mongodb.org/browse/DOCSP-29259
Staging -
https://docs-mongodbcom-staging.corp.mongodb.com/kotlin/docsworker-xlarge/docsp-29259-whats-new/whats-new/

## Updated Page
- [What's New
page](https://www.mongodb.com/docs/drivers/java/sync/current/whats-new/)

## Self-Review Checklist

- [ ] Is this free of any warnings or errors in the RST?
- [ ] Did you run a spell-check?
- [ ] Did you run a grammar-check?
- [ ] Are all the links working?

Author: cbullinger

source/index.txt

@@ -10,6 +10,7 @@ MongoDB Kotlin Driver (Alpha)
 
    /quick-start
    /quick-reference
+   /whats-new
    /fundamentals
    /api-documentation
    /faq
@@ -103,12 +104,11 @@ For the compatibility charts that show the recommended Kotlin
 Driver version for each MongoDB Server version, see the
 :doc:`Compatibility </compatibility>` section.
 
-.. TODO:(DOCSP-29259)
-.. What's New
-.. ----------
+What's New
+----------
 
-.. For a list of new features and changes in each version, see the
-.. :doc:`What's New </whats-new>` section.
+For a list of new features and changes in each version, see the
+:doc:`What's New </whats-new>` section.
 
 Learn
 ------