docs: linked page to get in touch with developers

Author: fstagni

docs/developers.md

@@ -0,0 +1,9 @@
+# Developers
+
+DiracX is an actively developed project. If you would like to actively participate in developments, and talk directly with the developers:
+
+- participate in our weekly developers meetings;
+- participate in our hackathons (3 to 4 times per year, at CERN);
+- participate in our workshops (once per year).
+
+All of the above are visible at [DiracGrid indico](https://indico.cern.ch/category/20884/) page.

docs/overrides/main.html

@@ -2,6 +2,6 @@
 
 {% block announce %}
   <div style="text-align: center;">
-    🚧 DiracX is still in development and might not yet be suitable for your needs. See the <a href="roadmap/">roadmap</a> for details. 🚧
+    🚧 DiracX is actively developed. If you intend to get in touch, see the <a href="developers/">developers</a> page. 🚧
   </div>
 {% endblock %}