update README

Author: silesky

README.md

@@ -65,11 +65,14 @@ make test
 SAUCE=true make test
 ```
 
-## Publishing to `npm`
+## Releasing a new version
+1. Publish to `npm`
 ```
 git co master && git pull --ff-only
 npm version <patch|minor|major>
 git push --follow-tags
 make build
 npm publish
 ```
+2. Create a new github release
+https://github.com/segmentio/snippet/releases