add version link

Author: dearing

CHANGELOG.md

@@ -31,6 +31,7 @@
 ## [v0.3.1] 
 #### Submission for feedback
 
+[v0.3.6]: https://github.com/dearing/ellk/compare/v0.3.5...v0.3.6
 [v0.3.5]: https://github.com/dearing/ellk/compare/v0.3.4...v0.3.5
 [v0.3.4]: https://github.com/dearing/ellk/compare/v0.3.3...v0.3.4
 [v0.3.3]: https://github.com/dearing/ellk/compare/v0.3.2...v0.3.3