Linux: Add Solus installation instructions

Signed-off-by: Pierre-Yves <pyu@riseup.net>

download.phtml

@@ -31,6 +31,7 @@
     <li class="imagelistitem" style="background-image: url(<?=$top_dir?>/images/icons/fedora.png);"><b>Fedora: </b><?php echo T_("Fedora users can install <span class=\"gnucash\">GnuCash</span> through System->Administration->Add/Remove Software (Gnome) or Applications->System->Software Management (KDE).")?></li>
     <li class="imagelistitem" style="background-image: url(<?=$top_dir?>/images/icons/mandriva.png);"><b>Mandriva: </b><?php echo T_("Mandriva users can install <span class=\"gnucash\">GnuCash</span> through the Software Management in the Mandriva Linux Control Center.")?></li>
     <li class="imagelistitem" style="background-image: url(<?=$top_dir?>/images/icons/redhat.png);"><b>Redhat/Centos: </b><?php echo T_("Redhat and CentOS don't have <span class=\"gnucash\">GnuCash</span> in their repositories by default. It can be installed however from the third-party Epel repository. For more details on configuring this additional software repository for your setup, see");?> <a href="https://fedoraproject.org/wiki/EPEL"><?php echo T_("Epel's wiki page");?></a>.</li>
+    <li class="imagelistitem" style="background-image: url(<?=$top_dir?>/images/icons/solus.png);"><b>Solus: </b><?php echo T_("Solus users can install <span class=\"gnucash\">GnuCash</span> through the Software Center(Office Software -> Financial Software -> gnucash).")?></li>
     <li class="imagelistitem" style="background-image: url(<?=$top_dir?>/images/icons/ubuntu.png);"><b>Ubuntu: </b><?php echo T_("Ubuntu users can install <span class=\"gnucash\">GnuCash</span> through the Software Center. This will install <span class=\"gnucash\">GnuCash</span> under the Office category in the Applications menu.")?></li>
   </ul>
   <p class="justify"><?php echo T_("If your distro doesn't ship with <span class=\"gnucash\">GnuCash</span> or you wish to install a different version than it ships with, you could try to build <span class=\"gnucash\">GnuCash</span> directly from the source code. The <span class=\"gnucash\">GnuCash</span> wiki has <a href='https://wiki.gnucash.org/wiki/Building'>guidelines for several distributions</a>.")?></p>