update known issues

Author: Bot

README.md

@@ -127,8 +127,7 @@ You can now submit code examples on which our users will test their typing skill
 Assuming your code passes all our tests it will be waiting for human verification as a pull request [here][pulls-url].
 
 ## Known Issues
-  * Sometimes after disconnecting from server not all variables updated
-  * In multiplayer language changes above editor when admin selects new one and the player is still on the results page
+  * Navbar glitches on small screens
 
 ## License