Update README.md

Author: RemiixInc

README.md

@@ -1,7 +1,7 @@
 # screenshot
 Serverless API to take screenshots of websites with Puppeteer.
 
-## Example
+### Example
 https://s.vercel.app/api?url=https://google.com&width=1280&height=720
 
 **Deploy your own screenshot API for free:**