Merge pull request #12 from getditto/BP/readme_updates

Add support mailbox to repo readme

README.md

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 # Authentication and Permissions
 
 Here you will find examples for how to implement authentication and permissions for Ditto, a peer-to-peer database.
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- <img align="left" src="Ditto_logo.png" alt="Ditto Logo" width="150">  
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 Ditto does not come with an identity provider. Using "Online With Authentication" requires that you have your own identity provider already set up. Each app can use multiple identity providers.
 
 The "Online With Authentication" identity type is geared towards apps that will be deployed in real world settings.
 
 [For more information, read the documentation](https://docs.ditto.live/ios/common/security/authentication)
 
+For support, please contact Ditto Support ([email protected]).
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 ## Try it on repl.it
 
 See an authentication example running on a server that handles three different permissions levels.