fix typo

Author: walsh9

index.html

@@ -87,7 +87,7 @@ <h1>Bisby's Escape</h1>
 <div class="instructions">
   <h2>Instructions</h2>
   <p>Use arrow keys, hjkl, or numpad to move.</p>
-  <p>Press'S' key to toggle sound.</p>
+  <p>Press 'S' key to toggle sound.</p>
   <p>Defeat enemies by dropping crates on them.</p>
   <p>Learn the crates' mysterious effects.</p>
   <p>Collect all the energy scattered throughout the level</p>
@@ -107,4 +107,4 @@ <h2>Links</h2>
   <p><a href="https://github.com/walsh9/7drl2016">Source on GitHub</a></p>
 </div>
 </body>
-</html>
+</html>