add our chat to the RTFD footer and top on our README (#2512)

* XML validation

* Revert "XML validation"

This reverts commit 6a41a4d.

* add our chat

* removed a line

README.md

@@ -1,3 +1,8 @@
+**Chat:**
+[![IRC: #mss-general on libera.chat](https://img.shields.io/badge/libera.chat-%23MSS_General-blue)](https://web.libera.chat/?channels=#mss-general)
+[![IRC: #mss-gsoc on libera.chat](https://img.shields.io/badge/libera.chat-%23MSS_GSoC-brightgreen)](https://web.libera.chat/?channels=#mss-gsoc)
+
+
 Mission Support System Usage Guidelines
 =======================================
 

docs/_templates/footer.html

@@ -0,0 +1,21 @@
+{% extends '!footer.html' %}
+
+{% block extrafooter %}
+    <HR>
+    <div class="footer-extra">
+        <p>
+            <a class="reference external" href="https://anaconda.org/conda-forge/mss"><img alt="Conda Version" src="https://img.shields.io/conda/vn/conda-forge/mss.svg" /></a>
+            <a class="reference external" href="https://doi.org/10.5281/zenodo.6572620"><img alt="DOI" src="https://zenodo.org/badge/DOI/10.5281/zenodo.6572620.svg" /></a>
+            <a class="reference external" href="https://www.fz-juelich.de/en/rse/jurse-community/jurse-code-of-the-month/july-2024"><img alt="JuRSE Code Pick" src="https://img.shields.io/badge/JuRSE_Code_Pick-July_2024-blue" /></a>
+            <a class="reference external" href="https://github.com/Open-MSS/MSS/issues"><img alt="GitHub Issues" src="https://img.shields.io/github/issues/Open-MSS/MSS" /></a>
+            <a class="reference external" href="https://coveralls.io/github/Open-MSS/MSS?branch=develop"><img alt="Coverage Status" src="https://coveralls.io/repos/github/Open-MSS/MSS/badge.svg?branch=develop" /></a>
+            <a class="reference external" href="https://anaconda.org/conda-forge/mss"><img alt="Conda Platforms" src="https://img.shields.io/conda/pn/conda-forge/mss.svg" /></a>
+            <a class="reference external" href="https://anaconda.org/conda-forge/mss"><img alt="Conda Recipe" src="https://img.shields.io/badge/recipe-mss-green.svg" /></a>
+            <a class="reference external" href="https://anaconda.org/conda-forge/mss"><img alt="Conda Downloads" src="https://img.shields.io/conda/dn/conda-forge/mss.svg" /></a>
+        </p>
+        <p>
+            <a href="https://web.libera.chat/?channels=#mss-general" target="_blank" rel="noopener"><img src="https://img.shields.io/badge/libera.chat-%23MSS_General-blue" alt="IRC: #mss-general on libera.chat"></a>
+            <a href="https://web.libera.chat/?channels=#mss-gsoc" target="_blank" rel="noopener"><img src="https://img.shields.io/badge/libera.chat-%23MSS_GSoC-brightgreen" alt="IRC: #mss-gsoc on libera.chat"></a>
+        </p>
+  </div>
+{% endblock %}