add margin bottom on projects header

Author: davidhu2000

src/pages/projects.astro

@@ -14,7 +14,7 @@ const description = "My list of projects.";
   <main>
     <section class="px-4 sm:px-6 pt-8 sm:pt-16 lg:pt-20 mx-auto max-w-3xl">
       <header>
-        <h1 class={`text-center text-5xl md:text-[3.50rem] font-bold`}>
+        <h1 class={`text-center text-5xl md:text-[3.50rem] font-bold mb-8`}>
           {title}
         </h1>
       </header>