Fix the version in CHANGELOG to 0.22 The release after 0.21 is 0.22. Add a new heading for the changes since 0.22.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5847a91..b2e1971 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,7 @@
-v0.21 + 1
+v0.22 + 1
+------
+
+v0.22
------
* File unlocks are atomic again via rename. Read-only files on Windows are