Update readme

README.md

@@ -164,6 +164,10 @@ See [changelog.md](https://github.com/42wim/matterbridge/blob/master/changelog.m
 
 See [FAQ](https://github.com/42wim/matterbridge/wiki/FAQ)
 
+Want to tip ? 
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+
 # Thanks
 Matterbridge wouldn't exist without these libraries:
 * discord - https://github.com/bwmarrin/discordgo