[BHUVANSH855]

Fixes #1

This pull request simplifies the project documentation and updates it for the move to the python organization.

Changes

• Add README.md (Punjabi) and README.en.md (English), linked to each other, as the Polish translation does.
• Shorten CONTRIBUTING.md, STYLE_GUIDE.md, RULES.md, GLOSSARY.md and Transifex_Setup.md, so that each can be read in one sitting and has one clear job. The outdated project status, statistics and per-file lists are removed.
• Fix the description of publishing: the documentation is built from this repository and published at https://docs.python.org/pa/, not "submitted upstream to CPython".
• Remove PROJECT_REPORT.md.
• Update the issue templates, the pull request template and config.yml. The links now point to python/python-docs-pa.
• Replace the custom Code of Conduct with a pointer to the PSF Code of Conduct.

No .po files and no workflows are changed.

Notes

• The READMEs link to https://docs.python.org/pa/. We would like to merge this after the first documentation build that includes pa, so that the link works.
• The CC0 license sentence is kept as it was.