Many settings require restarting rocket.chat. We need to make note of these changes.

• File Upload->Accepted Media Types WebM file upload not working #1460
• Push notification settings [code]
• Administration > Accounts > Avatar > Avatar Storage Type - Avatars can not be store on filesystem #3020

@RocketChat/core do we have others? This would probably make a good set of tasks for someone new that wants to contribute. I know there are more. :)