Docs (toolbars): grammar correction.

docs/toolbars/docs-bars.html

@@ -40,7 +40,7 @@ <h2>Toolbar types</h2>
 
 			<h2>Toolbar positioning options</h2>
 
-			<p>The header and footer can be positioned on the page in a few different ways. By default, the toolbars use the <strong>"inline" positioning</strong> mode. In this mode, the headers and footers sit in the natural document flow (the default HTML behavior), which ensures that they are visible on all devices, regardless of JavaScript and CSS positioning support.</p>
+			<p>The header and footer can be positioned on the page in a few different ways. By default, the toolbars use the <strong>"inline" positioning</strong> mode. In this mode, the header and footer sit in the natural document flow (the default HTML behavior), which ensures that they are visible on all devices, regardless of JavaScript and CSS positioning support.</p>
 
 			<p>A <a href="bars-fixed.html"><strong>"fixed" positioning mode</strong></a> fixes the toolbars to either the top or bottom of the viewport on browsers that support CSS fixed positioning (which includes most desktop browsers, iOS5+, Android 2.2+, BlackBerry 6, and others). In browsers that don't support fixed positioning, the toolbars will fall back to static, inline position in the page.</p>
 			<p> When tap-toggling is enabled, tapping the screen will toggle the visibility of the fixed toolbars. Tapping the page when the toolbars aren't visible brings them into view. Tapping again hides them until you tap again. This gives users the option to hide the toolbars until needed to maximize screen real estate. One caveat is that fixed toolbars never truly hide, but toggle between fixed and static positioning. This means that if you're at the top of a page, you can't tap-toggle a header toolbar out of view, as it instead toggles into its spot in the document flow at the top of the page. The same goes for fixed footers when scrolled to the very bottom of a document.</p>