0.1 adding webhook support

[ZobairQ]

Problem Description

There were several problems with the current state of the script.

• There was a mismatch between the image and the Dockerfile. The Dockerfile would not be built and run locally
• The documentation was a little behind the time using docker-compose 2
• The script synced every X seconds and had no webhook support

Solution

• Dockerfile updated and can now run locally
• The documentation is now updated
  • Table of content added
  • docker-compose updated to version 3
• Script updated to actually be able to have webhooks and only pulls when there has been pushed something to the repo.