[Site] Update heading

Author: Neet-Nestor

site/_includes/hero.html

@@ -1,6 +1,6 @@
 <section id="hero">
   <div class="heading-container">
-    <h1>Universal LLM Deployment Engine with ML Compilation</h1>
+    <h1>MLC LLM: Universal LLM Deployment Engine With ML Compilation</h1>
     <div class="link-container">
       <a class="github-link" href="https://github.com/mlc-ai/mlc-llm">
         <span class="github-link-content">