Correction documentation error

test.html

@@ -172,7 +172,7 @@ <h3 class="text-left">Instance</h3>
  By default, BlockAdBlock is instantiated automatically.<br>
  To block this automatic instantiation, simply create a variable "blockAdBlock" with a value (null, false, ...) before importing the script.
  </p>
-<pre><code class="javascript">&lt;script&gt;var blockAdBlock = false;&lt/script&gt;
+<pre><code class="html">&lt;script&gt;var blockAdBlock = false;&lt/script&gt;
 &ltscript src="./blockadblock.js"&gt;&lt/script&gt;</code></pre>
 After that, you are free to create your own instances:
 <pre><code class="javascript">blockAdBlock = new BlockAdBlock;