Update CHANGELOG.md

Author: cicirello

CHANGELOG.md

@@ -16,6 +16,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 
+## [2.1.2] - 2020-09-15
+
+### Other
+* Working on getting workflow for publishing to maven central working properly.  No functional difference from previous release.
+
+
+## [2.1.1] - 2020-09-15
+
+### Other
+* Working on getting workflow for publishing to maven central working properly.  No functional difference from previous release.
+
+
 ## [2.1.0] - 2020-09-15
 ### Added
 * Automated generation of sitemap.xml via GitHub actions for the documentation website.