Update usage.md.jinja2

[ymuraki-csc]

fix typo:
https://pypi.org/project/boto3-stubs/#pycharm

Notes

Please describe your changes here.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

All of these are optional:

• I have performed a self-review of my own code
• I have run ./scripts/before_commit.sh to follow the style guidelines of this project
• I have tested my code changes

Thank you!

[vemel]

Thank you for your contribution! I am happy that your read the docs 👍