about.md: Social media each on new line

Author: Oscar Shaw

Diff for: about.md

@@ -14,8 +14,13 @@ Already joined? Log in at [dvcoders.slack.com](http://dvcoders.slack.com)
 
 #### **Connect with us**
 [[email protected]](mailto:[email protected])
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 [orgsync.com](https://orgsync.com/152317/chapter)
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 [facebook.com/dvcoders](https://www.facebook.com/dvcoders/)
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 [github.com/dvcoders](https://github.com/dvcoders)
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 [instagram.com/dvcoders](https://instagram.com/dvcoders/)
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 [twitter.com/dvcoders](https://twitter.com/dvcoders)