[sql mode] Fix demo page

mode/sql/index.html

@@ -53,9 +53,22 @@ SELECT SQL_NO_CACHE DISTINCT
             <code><a href="?mime=text/x-cassandra">text/x-cassandra</a></code>,
             <code><a href="?mime=text/x-plsql">text/x-plsql</a></code>.
         </p>
-        <p>
-            <strong>Tests:</strong>
-            <a href="../../test/index.html#sql_*">normal</a>,
-            <a href="../../test/index.html#verbose,sql_*">verbose</a>.
-        </p>
-    </article>
+<script>
+window.onload = function() {
+  var mime = 'text/x-mariadb';
+  // get mime type
+  if (window.location.href.indexOf('mime=') > -1) {
+    mime = window.location.href.substr(window.location.href.indexOf('mime=') + 5);
+  }
+  window.editor = CodeMirror.fromTextArea(document.getElementById('code'), {
+    mode: mime,
+    indentWithTabs: true,
+    smartIndent: true,
+    lineNumbers: true,
+    matchBrackets : true,
+    autofocus: true
+  });
+};
+</script>
+
+</article>