fix build (#647)

Author: davidhou17

source/get-started-embedding-sdk.txt

@@ -48,7 +48,7 @@ Enable Embedding
             .. include:: /includes/steps/embed-chart-authenticated.rst
 
             Configure Embedding Authentication Providers
-            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+            ````````````````````````````````````````````
 
             .. include:: /includes/steps/add-auth-providers.rst