Add Fatuma file to interested tech writers directory (#1182)

* feat: add my entry to interested writers

* fix: improve grammar

* fix: make colons bold

* fix: remove bullet points

2024-participants/interested-technical-writers/FATUMAABDULLAHI.md

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+Fatuma Abdullahi | [Portfolio](https://blog.hijabicoder.dev), [FreeCodeCamp Author Profile](https://www.freecodecamp.org/news/author/fatuma) | **Interests:** API documentation, Contributing guides, How-To guides, In-depth tutorials, Open source and docs-as-code. **Technical skills:** Javascript, Typescript, Flutter and Dart, React and Next, Serverless, Git and GitHub, Markdown. **Open Source Contributions:** [Ocaml.org](https://github.com/ocaml/ocaml.org/pulls?q=is%3Apr+author%3AFatumaA+is%3Aclosed), [Supabase](https://github.com/supabase/supabase/pulls?q=is%3Apr+author%3AFatumaA+is%3Aclosed), [Supabase Community](https://github.com/supabase-community/flutter-auth-ui/pulls?q=is%3Apr+author%3AFatumaA+is%3Aclosed)