Update README.md (#1160)

### Description

Fixing a typo in Nitro example's README.

Author: anthonyshew

framework-boilerplates/nitro/README.md

@@ -8,7 +8,7 @@ Deploy your own Nitro project with Vercel.
 
 [![Deploy with Vercel](https://vercel.com/button)](https://vercel.com/new/clone?repository-url=https://github.com/vercel/examples/tree/main/framework-boilerplates/nitro&template=nitro)
 
-_Live Example: https://nitro-template.vercel.app//_
+Live Example: https://nitro-template.vercel.app/
 
 ## Developing