Minor documentation changes

index.html

         "property | Strength required | 15",
         "property | Stealth | Disadvantage",
         "rule",
-        "fill-2",
+        "fill | 2",
         "description | Heavy | Your speed is reduced by 10 feet.",
         "description | Stealth | You have disadvantage on Stealth.",
-        "fill-3"
+        "fill | 3"
     ]
 }
 </code></pre>