ignore workflow for non relevant changes

[john0isaac]

Purpose

• Update to make the workflow stop running for readme changes.

Change

branches:
- main  

To

branches: [ main ]

Is to make it consistent with the tests.yml https://github.com/Azure-Samples/azure-flask-postgres-flexible-appservice/blob/main/.github/workflows/tests.yml

Does this introduce a breaking change?

[ ] Yes
[X] No

Pull Request Type

What kind of change does this Pull Request introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[X] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:

[john0isaac]

I also found a typo in the https://github.com/Azure-Samples/azure-flask-postgres-flexible-appservice/blob/a94e8c5538360d3f67cf13bf0384c2504b4806cc/src/flaskapp/config/development.py#L13

I fixed it here as it affects other generated flask github repos too.

[kjaymiller]

Good catch on that. I'll get that added. Thank you for your contribution!