Update release notes markdown for 0.22.1

Author: mattstratton

RELEASE_NOTES.md

@@ -1,11 +1,11 @@
 # Change Log
 
-## [0.22.0](https://github.com/devopsdays/devopsdays-cli/tree/0.22.0) (2017-10-21)
-[Full Changelog](https://github.com/devopsdays/devopsdays-cli/compare/0.21.0...0.22.0)
+## [0.22.1](https://github.com/devopsdays/devopsdays-cli/tree/0.22.1) (2017-10-21)
+[Full Changelog](https://github.com/devopsdays/devopsdays-cli/compare/0.22.0...0.22.1)
 
 **Implemented enhancements:**
 
-- Create showTalk function [\#59](https://github.com/devopsdays/devopsdays-cli/issues/59)
+- implement error checking in helpers.GetTalks [\#88](https://github.com/devopsdays/devopsdays-cli/issues/88)