Switch from symlink to PATH in example

[ddelange]

Hi 👋

Let me know what you think :)

$ which python
/usr/share/python3/app/bin/python

[mosquito]

@dudelange thank you for a question, really like this format the PR instead of issues ;-)

I answered in the code comments what am I think about it.

[ddelange]

Hmm, CI fails due to missing credentials 🤔

Inconsistent with python2 behaviour

Agreed, is it a problem? Should we note it in that comment and go ahead with this PR? Or close it and keep the softlink?

[ddelange]

Suggested change

	# Add entrypoints from the venv to PATH (e.g. 'pip', 'python', just for convenience)
	# For convenience, add entrypoints from the venv to PATH, e.g. 'pip', 'python' (on py2 /usr/bin/python comes first)

[ddelange]

hmm, the above changes won't work. both the push and pull are needed (always building upon latest). the alternative isn't very clean... docker/build-push-action#225 (comment)

[ddelange]

Solution would probably be to pass the default available gh token to the docker login action for ghcr (docs): password: ${{ secrets.GITHUB_TOKEN }} but that doesn't solve the issue of pulling latest regardless of branch...

Would say it's a separate project to get CI to run for PRs, and due to the inconsistency with python2, will close this PR.