Update subtitle text in index.html

Author: TheOddCell

index.html

@@ -35,7 +35,7 @@
                 <div class="hero-text">
                     <h1 class="main-title">ObsidianOS</h1>
                     <p class="subtitle">
-                        The GNU/Linux distribution with A/B Partitioning.
+                        The meta Linux distribution with A/B Partitioning.
                     </p>
                 </div>
             </div>