Merge pull request #2799 from MicrosoftDocs/repo_sync_working_branch

Confirm merge from repo_sync_working_branch to master to sync with https://github.com/MicrosoftDocs/powerapps-docs (branch live)

Author: Nkrb

powerapps-docs/developer/component-framework/sample-controls/react-facepile-control.md

@@ -42,7 +42,7 @@ Model-driven apps and canvas apps (public preview)
 </manifest>
 ```
 
-## overview
+## Overview
 
 This sample provides examples on how to add dependencies for third-party libraries and Office UI Fabric, showcasing how to utilize the Office UI Fabric components for React for UI and perform bi-directional data-binding between the Power Apps component framework and the React state model.