CHANGELOG.md in link_thumbnailer-2.2.0 vs CHANGELOG.md in link_thumbnailer-2.2.1

@@ -1,4 +1,8 @@
+# 2.2.1
+
+- Fix issue when computing link density ratio
+
 # 2.2.0
 
 - Add support for `og:video`
 - Add support for multiple `og:video` as well