Fix typo on the demo page (antialising -> antialiasing)

demoassets/main.js

@@ -135,7 +135,7 @@ $(function() {
         }
         if ($this.is("#colors")) {
             resembleControl.ignoreColors();
-        } else if ($this.is("#antialising")) {
+        } else if ($this.is("#antialiasing")) {
             resembleControl.ignoreAntialiasing();
         } else if ($this.is("#alpha")) {
             resembleControl.ignoreAlpha();

index.html

@@ -103,7 +103,7 @@
 									<button class="btn" id="raw">Ignore nothing</button>
 									<button class="btn active" id="less">Ignore less</button>
 									<button class="btn" id="colors">Ignore colors</button>
-									<button class="btn" id="antialising">Ignore antialiasing</button>
+									<button class="btn" id="antialiasing">Ignore antialiasing</button>
 									<button class="btn" id="alpha">Ignore alpha</button>
 								</div>