Format READMEs (#17454)

This PR formats a couple README files.

Release Notes:

- N/A

.cloudflare/README.md

@@ -1,8 +1,8 @@
 We have two cloudflare workers that let us serve some assets of this repo
 from Cloudflare.
 
-* `open-source-website-assets` is used for `install.sh`
-* `docs-proxy` is used for `https://zed.dev/docs`
+- `open-source-website-assets` is used for `install.sh`
+- `docs-proxy` is used for `https://zed.dev/docs`
 
 On push to `main`, both of these (and the files they depend on) are uploaded to Cloudflare.
 

README.md

@@ -4,11 +4,10 @@
 
 Welcome to Zed, a high-performance, multiplayer code editor from the creators of [Atom](https://github.com/atom/atom) and [Tree-sitter](https://github.com/tree-sitter/tree-sitter).
 
---------
+---
 
 ### Installation
 
-
 <a href="https://repology.org/project/zed-editor/versions">
     <img src="https://repology.org/badge/vertical-allrepos/zed-editor.svg?minversion=0.143.5" alt="Packaging status" align="right">
 </a>