turn example spaces into section header

README.md

@@ -51,7 +51,7 @@ pinned: false
       <li class="my-4">3. Submitting your demo on Spaces to the Gradio Blocks Party Organization</li>
    </ul>
    <br />
-   <p class="lg:col-span-2">Example spaces using Blocks can be found at</p>
+   <h3 class="my-8 lg:col-span-2" style="font-size:20px; font-weight:bold">Example spaces using Blocks</h3>
    <ul class="lg:col-span-2" style="list-style: circle inside">
       <li class="my-4"><a href="https://huggingface.co/spaces/akhaliq/ArcaneGAN-blocks" target="_blank">https://huggingface.co/spaces/akhaliq/ArcaneGAN-blocks</a></li>
       <li class="my-4"><a href="https://huggingface.co/spaces/merve/gr-blocks" target="_blank">https://huggingface.co/spaces/merve/gr-blocks</a></li>