feat: add feature list section to README with mise CLI description

Author: atty303

README.md

@@ -1,3 +1,9 @@
 # devcontainer-features
 
 This repository contains a collection of Dev Container features maintained by me.
+
+## List of Features
+
+| Feature Name      | Description            |
+|-------------------|------------------------|
+| [mise](src/mise/) | Installs the mise CLI  | [mise](https://mise.jdx.dev/) |