updated release notes

change_logs/release_0.2.1.md

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+# Release v0.2.1
+
+## Notes
+
+Thank you to all that contributed with flushing out issues with K9s! I'll try
+to mark some of these issues as fixed. But if you don't mind grab the latest
+rev and see if we're happier with some of the fixes!
+
+If you've filed an issue please help me verify and close.
+
+Thank you so much for your support!!
+
+---
+
+## Change Logs
+
++ Bad call on the log view! Reverted to original and on the radar
+  for a rewrite. This will most likely introduce some
+  disturbance in the log force, but the previous solution would not
+  work for init containers and not running pods.
++ Added live resource filters + alias view
++ Surfaced elevator control for table view navigation
+
+---
+
+## Resolved Bugs