Merge pull request #13 from EliahKagan/deps

Update dependencies; use Python 3.11

This updates dependencies, including Pyodide. The new version of
Pyodide uses Python 3.11.2, so I also migrated from 3.10 to 3.11 in
the non-web (pipenv) manifest. I tested it all out and it seems to
work fine.

This bumps the project version to alpha 4, and updates the
documentation to reflect that and the changed dependency versions.

Also, since CodeQL doesn't automatically use Python 3.11, I
switched from a basic to advanced configuration for it and added a
step to set up Python 3.11. It finds and uses that interpreter, so
it can install dependencies.

update dependencies; update/clarify versions in readme; bump to alpha 3+

move to Pyodide 0.19; bumped version to alpha 3

This brings the indirect Pillow dependency to version 9.0.0.
Previous updates only did that for non-web (pipenv) use.

bumped version to alpha 2+

further copyediting

added missing semicolon

Revert "fixed misspelled url in readme"

The "misspelled" tag was actually what I meant to call it, and I
think that spelling (with the hyphen) is clearer, so I'm fixing
the tag. (The repo is not public as of this commit, so there's no
risk of breaking other users.)

This reverts commit fac8b6f.

0BSD licensed + added readme