Update gallery images (#143)

index.html

@@ -79,37 +79,37 @@ redirect_from:
 <div class="row">
   <div class="col-lg-6">
     <a href="/media/gallery/1.jpg" class="thumbnail">
-      <img src="/media/gallery/1-thumb.jpg" alt="A sandy beach with grass and trees in the distance">
+      <img src="/media/gallery/1-thumb.jpg" alt="A tranquil bay with grass and trees">
     </a>
   </div>
 
   <div class="col-lg-6">
     <a href="/media/gallery/2.jpg" class="thumbnail">
-      <img src="/media/gallery/2-thumb.jpg" alt="A grassy field with rock and trees">
+      <img src="/media/gallery/2-thumb.jpg" alt="South pacific old growth forest">
     </a>
   </div>
 
   <div class="col-lg-6">
     <a href="/media/gallery/3.jpg" class="thumbnail">
-      <img src="/media/gallery/3-thumb.jpg" alt="A pond with papyrus">
+      <img src="/media/gallery/3-thumb.jpg" alt="Castles in a large multiplayer server">
     </a>
   </div>
 
   <div class="col-lg-6">
     <a href="/media/gallery/4.jpg" class="thumbnail">
-      <img src="/media/gallery/4-thumb.jpg" alt="A jungle with trees and grass">
+      <img src="/media/gallery/4-thumb.jpg" alt="Sunset over an underwater forest">
     </a>
   </div>
 
   <div class="col-lg-6">
     <a href="/media/gallery/5.jpg" class="thumbnail">
-      <img src="/media/gallery/5-thumb.jpg" alt="A cave lit with torches">
+      <img src="/media/gallery/5-thumb.jpg" alt="Cave with a dungeon entrance">
     </a>
   </div>
 
   <div class="col-lg-6">
     <a href="/media/gallery/6.jpg" class="thumbnail">
-      <img src="/media/gallery/6-thumb.jpg" alt="A cave filled with lava">
+      <img src="/media/gallery/6-thumb.jpg" alt="Underground cavern with flowing lava">
     </a>
   </div>
 </div>