diff --git a/README.md b/README.md
index be006bc..0a300db 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,7 @@ A local webserver can be set up by running `npm install http-server -g` to insta
 - `npm run dev-build` - Run webpack to pack Javascript files and watch for changes.
 - `http-server`
 - `vim src/lib.js src/index.js`
+- `rm -fv src/index.js && git co src/index.js` - Get the new SHA1 hash that will be displayed in debug messages.
 - `npm test` - Make sure you didn't break any of the core logic!
 - `npm run build` - Webpack Javscript files in production mode (smaller file but takes longer)
 - `./go-sync-to-s3.sh` - Do this if you're me, to upload to S3.  If you're not me, you'll need to do something else, or possibly nothing at all.
@@ -70,6 +71,7 @@ A local webserver can be set up by running `npm install http-server -g` to insta
 - `npm run clean; npm run dev-build` - Run webpack in dev mode while working on Javascript
    - `http-server` - Stand up a local HTTP server
    - `vim src/lib.js src/index.js`
+   - `rm -fv src/index.js && git co src/index.js`
 - `npm run clean; npm run build` - Run webpack in prod mode to produce final Javascript bundle
 - `./go-sync-to-s3.sh` - Do this if you're me, to upload to S3.  If you're not me, you'll need to do something else, or possibly nothing at all.