Fix example in readme

fogrew · fogrew · commit 45ff8919fcc4 · 2015-12-18T20:36:10.000+03:00
diff --git a/README.md b/README.md
@@ -10,7 +10,7 @@ __index.html__
     <title>index.html</title>
 </head>
 <body>
-    <include src="component/button/button.html">
+    <include src="component/button/button.html"></include>
 </body>
 </html>
 ```
