docs: add fedsocnet supported versions

static/index.html

@@ -27,7 +27,7 @@
 </div>
 
 <div id="fedsocnet-logos" class="col-xs-1">
- <a href="http://joinmastodon.org/"><img src="/static/mastodon_logo.png" class="img-responsive" /></a>
+ <a href="https://joinmastodon.org/"><img src="/static/mastodon_logo.png" class="img-responsive" /></a>
  <a href="https://hubzilla.org/"><img src="/static/hubzilla_logo.png" class="img-responsive" /></a>
 </div>
 
@@ -74,8 +74,12 @@ This isn't <a href="https://indieweb.org/syndication">syndication</a> or <a href
 These sites are currently supported:
 </p>
 <ul>
-<li><em><a href="https://joinmastodon.org/">Mastodon</a></em>: replies, likes, and reposts aka boosts are supported, both directions, via ActivityPub.</li>
-<li><em><a href="https://project.hubzilla.org/">Hubzilla</a></em>: replies, likes, and reposts aka shares are supported, both directions, via OStatus.</li>
+<li><em><a href="https://joinmastodon.org/">Mastodon</a></em>: replies, likes, and reposts aka boosts, both directions, via ActivityPub.<br />
+<span class="small">The instance must be running <a href="https://hackernoon.com/mastodon-and-the-w3c-f75f376f422">Mastodon 1.6</a> or higher. You can find its version on the bottom or right of its <code>/about/more</code> page, e.g. <a href="https://mastodon.social/about/more">mastodon.social/about/more</a>.</span>
+</li>
+<li><em><a href="https://project.hubzilla.org/">Hubzilla</a></em>: replies, likes, and reposts aka shares, both directions, via OStatus.<br />
+<span class="small">The instance must be running <a href="https://hub.somaton.com/channel/mario/?f=&mid=6db16e0e253c3c376cb921e7b31f94c24522933d7e54c6cf9febaa05359ab2fe@hub.somaton.com">Hubzilla 2.6</a> or higher. You can find its version on its <code>/siteinfo</code> page, e.g. <a href="https://hub.somaton.com/siteinfo">hub.somaton.com/siteinfo</a>.</span>
+</li>
 </ul>
 
 <p>