Update ruby.snippets: add binding.irb debug

Author: r3jack

snippets/ruby.snippets

@@ -612,6 +612,8 @@ snippet debug18
 	require 'ruby-debug'; debugger
 snippet pry
 	require 'pry'; binding.pry
+snippet irb
+	binding.irb
 snippet strf
 	strftime('${1:%Y-%m-%d %H:%M:%S %z}')${0}
 #