Add poliastro as new member

_config.yml

@@ -60,6 +60,10 @@ glue_url: http://www.glueviz.org/
 glue_mailinglist_user: http://groups.google.com/group/glue-viz
 glue_mailinglist_dev: http://groups.google.com/group/glue-viz-dev
 
+poliastro_url: http://poliastro.readthedocs.io/
+poliastro_mailinglist_dev: https://groups.io/g/poliastro-dev
+poliastro_riot: https://riot.im/app/#/room/#poliastro:matrix.org
+
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_includes/members/poliastro.html

@@ -0,0 +1,32 @@
+<div class="media">
+  <a href="{{ site.poliastro_url }}">
+  <img class="media-object pull-left" src="{{page.root}}/img/members/poliastro.png" alt="poliastro" />
+  </a>
+  <div id="poliastro" class="media-body">
+    <a href="{{ site.poliastro_url }}" class="project" target="_blank">yt</a>
+    is a python package for Astrodynamics and Orbital Mechanics problems,
+    such as orbital elements conversion, orbital propagation, plotting,
+    planetary ephemerides computation, and more.
+    <br/>
+    <br/>
+                <a href="https://github.com/poliastro/poliastro" target="_blank">
+              <span class="icon  icon--github">
+                <svg height="50%" viewBox="0 0 30 30">
+                  <path fill="#333333" d="{{ site.bb_logo }}"/>
+                </svg>
+              </span>
+	      poliastro/poliastro</a>
+    <br/>
+<!-- mail -->
+             <span class="icon  icon-envelope"> </span>
+      <a href="{{ site.poliastro_mailinglist_dev }}">poliastro-dev</a> <br/>
+<!-- irc -->
+      <a href="{{ site.poliastro_riot }}">
+              <span class="icon  icon--github">
+                <svg viewBox="0 0 40 40" height="50%">
+                  <path fill="#333333" d="{{ site.irc_logo }}"/>
+                </svg>
+              </span>
+	      #poliastro:matrix.org</a>
+  </div>
+</div>