Add gitlab to site footer in social section, to git tutorial and to the top of get-involved in the nav menu

i2p2www/pages/site/get-involved/index.html

@@ -17,6 +17,13 @@ Other contact information is maintained on <a href="{{ team }}">this page</a>.
 If you're interested in development, <a href="{{ team }}">please get in
 touch as we're always looking for new contributors.</a>
 {%- endtrans %}</p>
+<h3>{% trans %}Join us on our Gitlab{% endtrans %}</h3>
+<ul>
+<li><strong><a href="http://git.idk.i2p">{% trans %}Inside I2P - (http://git.idk.i2p){% endtrans %}</a></strong>
+</li>
+<li><strong><a href="https://i2pgit.org">{% trans %}Outside I2P - (https://i2pgit.org){% endtrans %}</a></strong>
+</li>
+</ul>
 <p>{% trans -%}
 We need help in many areas, and you don't need to know Java to contribute.
 Here's a list to help get you started.