Add Go-Flow web framework

[Prastiwar]

Please check if what you want to add to awesome-go list meets quality standards before sending pull request. Thanks!

Please provide package links to:

• repo link (github.com, gitlab.com, etc): https://github.com/Prastiwar/Go-Flow
• pkg.go.dev: https://pkg.go.dev/github.com/Prastiwar/Go-flow
• goreportcard.com: https://goreportcard.com/report/github.com/Prastiwar/Go-flow
• coverage service link (codecov, coveralls, etc.): https://sonarcloud.io/summary/overall?id=Prastiwar_Go-flow

Note: that new categories can be added only when there are 3 packages or more.

Make sure that you've checked the boxes below that apply before you submit PR.
Not every repository (project) will require every option, but most projects should. Check the Contribution Guidelines for details.

• The package has been added to the list in alphabetical order.
• The package has an appropriate description with correct grammar.
• As far as I know, the package has not been listed here before.
• The repo documentation has a pkg.go.dev link.
• The repo documentation has a coverage service link.
• The repo documentation has a goreportcard link.
• The repo has a version-numbered release and a go.mod file.
• I have read the Contribution Guidelines, Maintainers Note and Quality Standards.
• The repo has a continuous integration process that automatically runs tests that must pass before new pull requests are merged.
• Continuous integration is used to attempt to catch issues prior to releasing this package to end-users.

Thanks for your PR, you're awesome! 👍

[github-actions]

Automated Quality Checks

Required checks

❌ Repo link: missing from PR body

How to fix: Add the following to your PR description:

Forge link: https://github.com/your-org/your-project

✅ **pkg.go.dev**: OK
✅ **Go Report Card**: OK (grade unknown)

### Additional checks

⚠️ **Coverage**: missing from PR body
  > **How to fix:** Add a coverage service link to your PR description:
  > ```
Coverage: https://app.codecov.io/gh/your-org/your-project

Popular options: Codecov, Coveralls. Integrate one with your CI to track coverage automatically.

---

Action needed: one or more required checks failed. Please update your PR body with the missing links and ensure the repository meets the quality standards.

These checks are automated and do not replace maintainer review. See CONTRIBUTING.md for full guidelines.

---

PR Diff Validation

Content checks

✅ Files changed: only README.md
✅ Single item: one package added
✅ Link text: matches repository name
✅ Description: ends with punctuation
✅ Description tone: no promotional language detected
✅ Category size: Web Frameworks has 39 items

Automated diff validation — does not replace maintainer review.