Update changelog for 1.21.0

CHANGELOG.md

@@ -8,14 +8,17 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ### Added
 
-- Added new FlowDB tables `infrastructure.cell_info` and `infrastructure.cells_table_versions` to keep track of changes to the cell info over time (note: the new tables have not yet replaced `infrastructure.cells` as the source of cell information for FlowKit queries). [#6184](https://github.com/Flowminder/FlowKit/issues/6184)
 
 ### Changed
 
 ### Fixed
 
 ### Removed
 
+## [1.21.0]
+### Added
+- Added new FlowDB tables `infrastructure.cell_info` and `infrastructure.cells_table_versions` to keep track of changes to the cell info over time (note: the new tables have not yet replaced `infrastructure.cells` as the source of cell information for FlowKit queries). [#6184](https://github.com/Flowminder/FlowKit/issues/6184)
+
 ## [1.20.0]
 
 ### Changed
@@ -1043,7 +1046,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 -   Added Python 3.6 support for FlowClient
 
-[Unreleased]: https://github.com/Flowminder/FlowKit/compare/1.20.0...master
+[Unreleased]: https://github.com/Flowminder/FlowKit/compare/1.20.1...master
+[1.21.0]: https://github.com/Flowminder/FlowKit/compare/1.20.0...1.21.0
 [1.20.0]: https://github.com/Flowminder/FlowKit/compare/1.19.1...1.20.0
 [1.19.1]: https://github.com/Flowminder/FlowKit/compare/1.19.0...1.19.1
 [1.19.0]: https://github.com/Flowminder/FlowKit/compare/1.18.4...1.19.0