add npm publish to circle deploy

Author: Sebastian McKenzie

circle.yml

@@ -33,3 +33,4 @@ deployment:
       - ghr --username yarnpkg --repository yarn --token $KPM_CIRCLE_RELEASE_TOKEN v$(node dist/bin/yarn --version) dist/yarn-v*.tar.gz
       - ghr --username yarnpkg --repository yarn --token $KPM_CIRCLE_RELEASE_TOKEN v$(node dist/bin/yarn --version) dist/yarn-$(node dist/bin/yarn --version).js
       - ghr --username yarnpkg --repository yarn --token $KPM_CIRCLE_RELEASE_TOKEN v$(node dist/bin/yarn --version) dist/yarn-legacy-$(node dist/bin/yarn --version).js
+      - npm publish