Autobuild on Pull Request

[taitruong]

Every time a PR is created, these tasks should be triggered:

• a build including unit tests should be started
• report of success or error build and tests

NOTE: maybe this is possible in GitHub (using GitHub Actions) instead of doing this in Google Cloud.

[taitruong]

https://www.heise.de/news/Einfuehrung-Was-ist-GitOps-und-welche-Werkzeuge-lohnen-sich-5993058.html

[taitruong]

Look at some other open source projects on GitHub: in their READMEs they have integrated: latests version, failed/success tests
https://github.com/angular/angular

https://github.com/expressjs/express