Update CHANGELOG - add fix of GitHub issue.

Pavel Marek · Pavel Marek · commit 4cb2ffefbc33 · 2020-12-11T15:34:46.000+01:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,3 +1,9 @@
+# 21.0.0
+
+Bug fixes:
+
+* Fix `AssertionError` in `sprintf` (#169)
+
 # 20.3.0
 
 Bug fixes:
