python/README.md: wrong product name ("CodeGuru Reviewer") and wrong license ("Apache-2.0")

## Problem
`python/README.md` contains two copy-paste errors that contradict the rest of the repo.

## Steps
1. `curl -sL https://raw.githubusercontent.com/aws-samples/amazon-codewhisperer-workshop/main/python/README.md`
2. Read line 25 and line 37.
3. Compare with root `README.md` and `LICENSE`.

## Expected
- `python/README.md:25` should reference Amazon CodeWhisperer (this repo's product), matching root README.
- `python/README.md:37` should say `MIT-0`, matching `LICENSE` and root README.

## Actual
- `python/README.md:25`: `Use the community resources below for getting help with AWS CodeGuru Reviewer.`
- `python/README.md:37`: `This project is licensed under the Apache-2.0 License. See the [LICENSE](LICENSE) file.`
- Root `README.md` line 40 correctly says `MIT-0 License`. `LICENSE` file header is MIT-0 (`Permission is hereby granted, free of charge...`).

## Environment
Repo `aws-samples/amazon-codewhisperer-workshop`, default branch `main`, HEAD as of 2026-07-04.

Thanks for maintaining aws-samples/amazon-codewhisperer-workshop!

Open python/README.md and inspect lines 25 and 37, then compare them with root README.md and LICENSE. Update the product name and license text to match those references, and verify both corrections against the expected values in the issue.

Written by the indexing model from the issue text.