Update README.md

Author: sunneydev

README.md

@@ -1,9 +1,22 @@
 # tsm
 
-### Create a TypeScript ESM project with a single command
+Create a TypeScript ESM project with a single command
 
 ## Usage
 
+Quick start
+
 ```bash
 pnpm create tsm my-app
 ```
+
+Install
+
+```bash
+pnpm i -g create-tsm
+```
+
+```
+tsm my-app
+```
+