Improve docs to be more explanatory

[avinal]

Why:

Fixes#974

What's being changed:

• Added {:copy} snippet to all code snippets
• Improved Dockerfile snippet to make scripts executable here

# Container image that runs your codeFROM alpine:3.10
# Copies your code file from your action repository to the filesystem path `/` of the containerCOPY entrypoint.sh /entrypoint.sh
# Makes your code file executableRUN chmod +x entrypoint.sh
# Code file to execute when the docker container starts up (`entrypoint.sh`)ENTRYPOINT ["/entrypoint.sh"]

• Removed a step here because it was unclear, this step is now covered by the previous change,

Check off the following:

• All of the tests are passing.
• I have reviewed my changes in staging.
• For content changes, I have reviewed the localization checklist
• For content changes, I have reviewed the Content style guide for GitHub Docs.

[welcome]

Thanks for opening this pull request! A GitHub docs team member should be by to give feedback soon. In the meantime, please check out the contributing guidelines.

[avinal]

corrected

[janiceilene]

@avinal Thanks so much for opening a PR! I'll get this triaged for review 🌟

[github-actions]

This PR is stale because it has been open 7 days with no activity and will be automatically closed in 3 days. To keep this PR open, update the PR by adding a comment or pushing a commit.

[avinal]

Is there more to add to this pr?

[janiceilene]

There's nothing you need to add @avinal! Thanks for your patience as our small team works through all of the amazing contributions 🌟

[avinal]

Thanks, @janiceilene for confirmation.

[github-actions]

This PR is stale because it has been open 7 days with no activity and will be automatically closed in 3 days. To keep this PR open, update the PR by adding a comment or pushing a commit.