Add LEARNINGS.md with course reflection

Summarizes what I took away from the Basics of GitHub course,
what's still fuzzy, and resources to revisit.

Author: david-wagih

LEARNINGS.md

@@ -0,0 +1,36 @@
+# What I Learned
+
+A short reflection after going through *The Basics of GitHub*.
+
+## What I learned
+
+- **Git vs. GitHub.** Git is the distributed version control system that lives on
+  your machine. GitHub is the hosting platform and web UI built around it.
+- **The GitHub flow.** Branch off `main`, commit work locally, push the branch,
+  open a pull request for review, then merge once it's approved.
+- **Repositories** are project folders with full history. A good `README.md`
+  tells visitors what the project is, why it exists, and how to use it.
+- **Branches** isolate in-progress work so `main` stays releasable.
+- **Forks** are server-side copies for contributing to repos you don't own —
+  the standard entry point for open source.
+- **Pull requests** are the conversation around a diff, not just a merge button.
+- **Issues** track work — bugs, tasks, ideas — and can be linked to PRs so they
+  auto-close on merge.
+- **Markdown** is the lingua franca of GitHub: READMEs, issues, PRs, comments.
+- **Community signals** — stars, follows, Explore — surface projects worth
+  paying attention to.
+
+## What's still a bit fuzzy
+
+- When to **rebase** vs. **merge** when bringing `main` into a feature branch.
+- How **protected branches** and required reviews are configured in practice.
+- Resolving **merge conflicts** confidently in a real PR (not a toy example).
+- **Forks vs. branches** for collaboration — when each is the right tool.
+- How **GitHub Actions** plug into the PR lifecycle (checks, required statuses).
+
+## Resources I want to come back to
+
+- [GitHub flow guide](https://guides.github.com/introduction/flow/)
+- [About branches](https://docs.github.com/en/github/collaborating-with-issues-and-pull-requests/about-branches)
+- [About pull requests](https://docs.github.com/en/github/collaborating-with-issues-and-pull-requests/about-pull-requests)
+- [Mastering Markdown](https://guides.github.com/features/mastering-markdown/)