Update documentation to mention the need to apply sql patches.

Summary:
Update documentation to mention the need to apply sql patches.

Task ID: #

Test Plan:
No

Reviewed By: epriestley
Reviewers: epriestley
CC: epriestley
Revert Plan:
OK

• begin *PUBLIC* platform impact section -

Bugzilla: #

• end platform impact -

Differential Revision: 52