fix(web): update github links to new organization

Author: darmie

website/index.html

@@ -565,7 +565,7 @@
       <li><a href="https://zyntax.org/book/">The Zyn Book</a></li>
       <li><a href="#" class="nav-link-badge">Playground <span class="coming-soon">Soon</span></a></li>
       <li>
-        <a href="https://github.com/darmie/zyntax" class="nav-cta" target="_blank" rel="noopener">
+        <a href="https://github.com/zyntax-project/zyntax" class="nav-cta" target="_blank" rel="noopener">
           <svg viewBox="0 0 24 24" fill="currentColor" aria-hidden="true"><path d="M12 0c-6.626 0-12 5.373-12 12 0 5.302 3.438 9.8 8.207 11.387.599.111.793-.261.793-.577v-2.234c-3.338.726-4.033-1.416-4.033-1.416-.546-1.387-1.333-1.756-1.333-1.756-1.089-.745.083-.729.083-.729 1.205.084 1.839 1.237 1.839 1.237 1.07 1.834 2.807 1.304 3.492.997.107-.775.418-1.305.762-1.604-2.665-.305-5.467-1.334-5.467-5.931 0-1.311.469-2.381 1.236-3.221-.124-.303-.535-1.524.117-3.176 0 0 1.008-.322 3.301 1.23.957-.266 1.983-.399 3.003-.404 1.02.005 2.047.138 3.006.404 2.291-1.552 3.297-1.23 3.297-1.23.653 1.653.242 2.874.118 3.176.77.84 1.235 1.911 1.235 3.221 0 4.609-2.807 5.624-5.479 5.921.43.372.823 1.102.823 2.222v3.293c0 .319.192.694.801.576 4.765-1.589 8.199-6.086 8.199-11.386 0-6.627-5.373-12-12-12z"/></svg>
           GitHub
         </a>
@@ -606,7 +606,7 @@ <h1 class="hero-title">
             </svg>
             Read the Zyn Book
           </a>
-          <a href="https://github.com/darmie/zyntax" class="btn btn-secondary" target="_blank" rel="noopener">
+          <a href="https://github.com/zyntax-project/zyntax" class="btn btn-secondary" target="_blank" rel="noopener">
             <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
               <polyline points="4 17 10 11 4 5"/>
               <line x1="12" y1="19" x2="20" y2="19"/>