Update bot.rb

example of inlining return and if at end of statement
No returns needed: 

langarry.any?{|userlang| lang == userlang}

http://apidock.com/ruby/v1_9_3_392/Enumerable/any%3F 
you could also use detect if you dont really care about true and false
http://apidock.com/ruby/v1_9_3_392/Enumerable/detect