docs: add crates list to README.md

README.md

@@ -3,3 +3,11 @@
 [![Docs](https://img.shields.io/github/actions/workflow/status/iahmadgad/randoms-rs/docs.yml?label=Docs&logo=docs.rs)](https://iahmadgad.github.io/randoms-rs/)
 
 My Rust playground, It contains small projects I code while I am learning & some Rust book exercises.
+
+# 📦 Crates
+- [`rock-paper-scissors`](rock-paper-scissors)
+- [`one-operation-calculator`](one-operation-calculator)
+- [`fibonacci`](fibonacci)
+- [`median-and-mode`](median-and-mode)
+- [`pig-latin`](pig-latin)
+- [`temperature`](temperature)