src/theme/index.hbs: close tag in search button properly

Author: AnInternetTroll

src/theme/index.hbs

@@ -112,7 +112,7 @@
 							<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20">
 								<path d="M7.5 13c3.04 0 5.5-2.46 5.5-5.5S10.54 2 7.5 2 2 4.46 2 7.5 4.46 13 7.5 13zm4.55.46C10.79 14.43 9.21 15 7.5 15 3.36 15 0 11.64 0 7.5S3.36 0 7.5 0C11.64 0 15 3.36 15 7.5c0 1.71-.57 3.29-1.54 4.55l6.49 6.49-1.41 1.41-6.49-6.49z"/>
 							</svg>
-						</a>
+						</button>
 					</li>
 					<noscript>
 						<li class="js-unavailable">Search functionality requires JavaScript</li>