Added <h1> tags to main div on most pages for consistency.

www.i2p2/pages/licenses.html

@@ -1,6 +1,8 @@
 {% extends "_layout.html" %}
 {% block title %}Licenses{% endblock %}
-{% block content %}<p>
+{% block content %}
+<h1>I2P Software Licenses</h1>
+<p>
 As required by our
 <a href="how_threatmodel.html">threat model</a> (among other reasons), the 
 software developed to support the anonymous communication