Add discord link

Author: JKamsker

README.md

@@ -1,7 +1,7 @@
 # LiteDB - A .NET NoSQL Document Store in a single data file
 
 [![Build status](https://ci.appveyor.com/api/projects/status/sfe8he0vik18m033?svg=true)](https://ci.appveyor.com/project/mbdavid/litedb) 
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+[![](https://dcbadge.limes.pink/api/server/u8seFBH9Zu?style=flat-square)](https://discord.gg/u8seFBH9Zu)
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 #### Read about LiteDB Project News: https://github.com/mbdavid/LiteDB/issues/2486
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