Added rss feed icon to footer

src/_includes/footer.html

@@ -10,6 +10,12 @@
         <a href= "https://git.autonomic.zone/autonomic-cooperative/autonomic.zone/src/branch/master/src/assets/pgp"> Verify fingerprint:</a><code id="fingerprint">82FC 87C5 1A71 902F DC10 2CF5 4F90 D55B B24B 1147</code>
 
       <ul class="icons" style="margin-bottom: 0; padding-top: 1em">
+        <li>
+          <a title="RSS Feed" rel="me" href="{{ '/feed.xml' | absolute_url }}" style="border-bottom: none">
+            <!-- This SVG needs to be changed if you change the colour scheme as it is a massive hack. -->
+            <img alt="rss" style="height: 2rem;color: #fff" src="{{ '/assets/svg/rss-square-solid.svg' | absolute_url }}">
+          </a>
+        </li>
         <li>
           <a title="Twitter" rel="noopener" href="{{ site.twitter_url }}" style="border-bottom: none">
             <img alt="twitter" style="height: 2rem;" src="{{ '/assets/svg/twitter-brands.svg' | absolute_url }}">

src/assets/svg/rss-square-solid.svg

@@ -0,0 +1 @@
+<svg aria-hidden="true" focusable="false" data-prefix="fas" data-icon="rss-square" class="svg-inline--fa fa-rss-square fa-w-14" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><path fill="#ffffff" d="M400 32H48C21.49 32 0 53.49 0 80v352c0 26.51 21.49 48 48 48h352c26.51 0 48-21.49 48-48V80c0-26.51-21.49-48-48-48zM112 416c-26.51 0-48-21.49-48-48s21.49-48 48-48 48 21.49 48 48-21.49 48-48 48zm157.533 0h-34.335c-6.011 0-11.051-4.636-11.442-10.634-5.214-80.05-69.243-143.92-149.123-149.123-5.997-.39-10.633-5.431-10.633-11.441v-34.335c0-6.535 5.468-11.777 11.994-11.425 110.546 5.974 198.997 94.536 204.964 204.964.352 6.526-4.89 11.994-11.425 11.994zm103.027 0h-34.334c-6.161 0-11.175-4.882-11.427-11.038-5.598-136.535-115.204-246.161-251.76-251.76C68.882 152.949 64 147.935 64 141.774V107.44c0-6.454 5.338-11.664 11.787-11.432 167.83 6.025 302.21 141.191 308.205 308.205.232 6.449-4.978 11.787-11.432 11.787z"></path></svg>