update CHANGELOG.md for v1.22

bhcleek · bhcleek · commit 804c8db75f15 · 2020-01-29T19:50:40.000-08:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,13 @@
 ## unplanned
 
+BACKWARDS INCOMPATIBILITIES:
+
+IMPROVEMENTS:
+
+BUG FIXES:
+
+## v1.22 - (January 30, 2020)
+
 BACKWARDS INCOMPATIBILITIES:
 * Drop support for Vim 7.4. The minimum required version of Vim is now 8.0.1453.
   [[GH-2495]](https://github.com/fatih/vim-go/pull/2495)
