Update base.hbs

Author: TorstenDittmann

apps/docs/partials/base.hbs

@@ -36,7 +36,7 @@
 				<menu>
 					<li><a href="/install.html" {{#if isInstallPage}}aria-current="page"{{/if}}>Install</a></li>
 					<li><a href="/docs.html" {{#if isDocsPage}}aria-current="page"{{/if}}>Examples</a></li>
-					<li><a role="button" href="https://github.com/torstendittmann/launch-css">GitHub</a></li>
+					<li><a role="button" href="https://github.com/torstendittmann/launch-css" target="_blank">GitHub</a></li>
 				</menu>
 			</nav>
 		</header>