Add Config Generator link to docs nav

Author: yatesdr

docs/index.html

@@ -121,6 +121,7 @@
                 <a href="#compatibility">Compatibility</a>
                 <a href="#features">Features</a>
                 <a href="#quickstart">Quick Start</a>
+                <a href="configure.html">Config Generator</a>
                 <a href="https://github.com/yatesdr/go-llm-proxy" target="_blank" rel="noopener">GitHub</a>
             </nav>
         </div>