Prepare for release v0.18.0

Author: Sequence Bot

CHANGELOG.md

@@ -1,19 +1,5 @@
 # v0.18.0 (2022-11-14)
 
-## Summary of Changes
-
-- Sequence has a new home: https://gitlab.com/sequence
-- The namespace has been updated from `Reductech.Sequence` to `Sequence`
-
-### Steps
-
-- Added `EntityValidateRelations`
-- Added `Flatten`
-
-### Other Changes
-
-Major performance improvements.
-
 ## Issues Closed in this Release
 
 ### New Features
@@ -31,6 +17,7 @@ Major performance improvements.
 ### Other
 
 - Update antl docker image to latest in CI #501
+- Update project dependencies #500
 - Update namespace and paths after move to Sequence group #499
 
 # v0.17.0 (2022-08-29)