Updating publishing steps in CONTRIBUTING.md

CONTRIBUTING.md

@@ -14,6 +14,12 @@ Note: some permission assertions always fail on Windows for now (:frowning:, I k
 
 ## Publishing
 
-Before publishing a new version, do the following:
-
-1. Run `node build`
+1. Add a line to the changelog in the README.
+2. Bump version in the `package.json` (see [semver.org](http://semver.org))
+3. Run `node build` 
+4. Run `npm publish`
+5. Commit the `package.json` and README changes as `{{version}}` (i.e. `1.2.3` if you just published `1.2.3`).
+6. Push.
+7. Create a [release](https://github.com/nwjs/nw-builder/releases).
+
+Think about [grunt-nw-builder](https://github.com/nwjs/grunt-nw-builder). It will need to be updated and published if this is a breaking change (i.e. a major version bump) or it requires a change to use a new feature added in this release.