Remove based on reference since it is very different now

Author: stefmolin

index.html

@@ -1601,15 +1601,6 @@ <h3><code>pyproject.toml</code></h3>
               build-backend = "hatchling.build"
             </code>
           </pre>
-            <small
-              >Based on
-              <a
-                href="https://github.com/stefmolin/pre-commit-example"
-                rel="noopener noreferrer"
-                target="_blank"
-                >stefmolin/pre-commit-example</a
-              ></small
-            >
           </div>
         </section>
         <section id="exif-stripper-entry-point">