fix ampl casing

Author: tandyx

projects/index.html

@@ -263,7 +263,7 @@ <h1>ampl vscode</h1>
             <p>
               created vscode extentsion that adds syntax highlighting, snippets,
               etc. for the
-              <span class="AMPL">AMPL</span>
+              <span class="AMPL">ampl</span>
               modeling language. made with
               <span class="TypeScript">typescript</span>.
             </p>