Replace broken installation link with anchor to Quick Start section

The Installation section linked to a wiki for the old CFWheels 2.x
example app, which is a different project. This README already has
its own Quick Start section with full setup instructions, so link
there instead.

Closes #1861

Co-Authored-By: Claude Opus 4.6 <[email protected]>

Author: bpamiri

examples/starter-app/README.md

@@ -8,7 +8,7 @@ This repository contains a **user management and authentication web application*
 
 ## Installation
 
-See [Installation](https://github.com/wheels-dev/Wheels-example-app/wiki/Installation)
+See the [Quick Start](#quick-start) section below for setup instructions.
 
 ## Key Features