Buttons: Fixing typos in demo file

Author: sfrisk

demos/buttons.html

@@ -83,9 +83,9 @@ <h3>Button Element</h3>
 </form>
 
 
-<h3>Setting Button Appearence Via Classes</h3>
+<h3>Setting Button Appearance Via Classes</h3>
 
-<p>Sometimes you might need to set the class of a ui-button to display a state.  This code works a<code>&lt;a&gt;</code>, <code>&lt;button&gt;</code>, or <code>&lt;input&gt;</code> elements.</p>
+<p>Sometimes you might need to set the class of a ui-button to display a state. This code works with <code>&lt;a&gt;</code>, <code>&lt;button&gt;</code>, or <code>&lt;input&gt;</code> elements.</p>
 
 <h3>Disabled Class</h3>
 <p>Add <code>--disabled</code> to the end of the button class.</p>