update CHANGELOG.md for v1.20

bhcleek · bhcleek · commit 58cda9d64bb8 · 2019-04-22T20:57:28.000-07:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,7 @@
 ## unplanned
 
+## 1.20 - (April 22, 2019)
+
 FEATURES:
 * ***gopls support!***
   * use gopls for autocompletion by default in Vim8 and Neovim.
