Highlighting github enterprise (#6674)

* Highlighting github enterprise

Changing the highlight for GitHub enterprise steps as it is hidden in the steps for Github.

* Update src/docs/product/integrations/source-code-mgmt/github/index.mdx

Co-authored-by: Shana Matthews <[email protected]>

---------

Co-authored-by: Shana Matthews <[email protected]>

Author: rodolfoBee

src/docs/product/integrations/source-code-mgmt/github/index.mdx

@@ -37,7 +37,7 @@ Sentry owner, manager, or admin permissions, and GitHub owner permissions are re
 
 The GitHub integration is available for all projects under your Sentry organization. You can connect multiple GitHub organizations to one Sentry organization, but you **cannot** connect a single GitHub organization to multiple Sentry organizations.
 
-### GitHub Enterprise
+## GitHub Enterprise
 
 #### Add new GitHub App