Merge pull request #115 from fstrr/patch-1

fix "pop=up" typo

guidelines/index.html

@@ -543,7 +543,7 @@ <h4>Familiar components and layout</h4>
 				</section>
 				<section class="guideline"  data-status="exploratory">
 					<h4>Focus retention</h4>
-					<p class="guideline-text"> A user can focus on a content “area,” such as a modal or pop=up, then resume their view of all content using a limited number of steps.</p>
+					<p class="guideline-text"> A user can focus on a content “area,” such as a modal or pop-up, then resume their view of all content using a limited number of steps.</p>
 				</section>
 				<section class="guideline"  data-status="exploratory">
 					<h4>Indicate 3rd party content</h4>