add instructions for publishing a release

build/README.md

@@ -11,3 +11,18 @@ container-builder-local --config=build/cloudbuild_local.yaml --dryrun=false --wr
 ```
 
 You will find the build artifacts under `/tmp/w/dist` directory
+
+### Publishing a Release
+
+Here are the steps to publish a new release.
+
+ - Figure out the next version (for ex. v1.0.3) to be released.
+ - Ensure that you are on master branch and is up-to-date with the remote upstream/master branch. Do the following if you are in doubt:
+   ```
+	git checkout master
+	git fetch upstream
+	git rebase upstream/master
+   ```
+ - Tag the repo by running `git tag -a <version> -m "<version> release"`
+ - Push the tag to `upstream` branch by running `git push upstream <version>`
+ - Thats it! The new tag will trigger a job in Google Container Builder and new release should appear in the releases page.