Changed the dev branch version number

Changed the documentation to reflect the right version number and to prevent confusion. Changed from 0.8.0-beta1 to 0.8.1-beta.

README.md

@@ -1,4 +1,4 @@
-# Discord.Net v0.8.0-beta1
+# Discord.Net v0.8.1-Beta
 An unofficial .Net API Wrapper for the Discord client (http://discordapp.com).
 
 Check out the [documentation](https://discordnet.readthedocs.org/en/latest/) or join the [Discord API Chat](https://discord.gg/0SBTUU1wZTVjAMPx).