Add instructions to update history on release

saulshanabrook · telamonian · commit 8f2da04f66b3 · 2020-03-25T01:56:39.000-04:00
diff --git a/README.md b/README.md
@@ -152,6 +152,8 @@ pytest jupyterlab_git
 jlpm run test
 ```
 
+Whenever you release a new version of this extension please update the history section below as needed.
+
 ## History
 
 *Up to date as of February 2020*
