updated EOL info

Author: MichaelMraka

_includes/frontpage_header.html

@@ -7,15 +7,15 @@
 
     </div>
     <div class="header-content-inner release-notes">
-        <h4>Spacewalk 2.10 was released!</h4>
+        <h4><span style="color: #ce181e">Spacewalk project has been discontinued on May 31 2020.</span></h4>
         <div class="release-notes-inner">
 <ul>
-<li><b>This is the last release of Spacewalk project!</b><br/>
-       Spacewalk project will be discontinued on May 31 2020.<br/>
-       <p></p></li>
-<li>Spacewalk is now installable on Fedora 30 and 31</li>
+<li><b>The last stable release of Spacewalk project is Spacewalk 2.10</b><br/>
+<li>Spacewalk is installable on Fedora 30 and 31</li>
 <li>Spacewalk supports Fedora 30 and 31, Red Hat Enterprise Linux and CentOS 8 clients</li>
-<li>Number of bugfixes and security fixes</li>
+<li>Number of bugfixes and security fixes<br/><p></p></li>
+<li><b>Spacewalk nightly contains an experimental code for RHEL8 server</b> (with dnf backend which
+breaks RHEL / CentOS 6 and 7 support).</li>
 </ul>
 <p>The up-to-date API documentation can be found at
 <a href="http://spacewalkproject.github.io/documentation/api/2.10/" rel="nofollow">http://spacewalkproject.github.io/documentation/api/2.10/</a></p>