Refactor prose

Author: wooorm

readme.md

@@ -14,11 +14,11 @@
 
 [npm][]:
 
-```bash
+```sh
 npm install mdast-util-heading-range
 ```
 
-## Usage
+## Use
 
 Say we have the following file, `example.md`:
 
@@ -161,8 +161,8 @@ See [`contributing.md` in `syntax-tree/.github`][contributing] for ways to get
 started.
 See [`support.md`][support] for ways to get help.
 
-This project has a [Code of Conduct][coc].
-By interacting with this repository, organisation, or community you agree to
+This project has a [code of conduct][coc].
+By interacting with this repository, organization, or community you agree to
 abide by its terms.
 
 ## License
@@ -193,7 +193,7 @@ abide by its terms.
 
 [collective]: https://opencollective.com/unified
 
-[chat-badge]: https://img.shields.io/badge/join%20the%20community-on%20spectrum-7b16ff.svg
+[chat-badge]: https://img.shields.io/badge/chat-spectrum-7b16ff.svg
 
 [chat]: https://spectrum.chat/unified/syntax-tree