Re-arrange installation blocks

index.html

@@ -149,6 +149,8 @@ <h4 id="Composer">Composer</h4>
     },
     "minimum-stability": "alpha"
 }</pre>
+                        </div>
+                        <div class="col-sm-6">
                             <h4 id="Phar">Phar</h4>
                             <p>
                                 Download the <a href="/get/phing-latest.phar">Phar archive</a> (version 3.0.0, <a
@@ -166,7 +168,7 @@ <h4 id="Phar">Phar</h4>
                                 </li>
                                 <li><a href="/get/phing-2.17.4.phar">phing-2.17.4.phar</a> (
                                     <a href="/get/phing-2.17.4.phar.sha512">sha-512 hash</a>
-                                )
+                                    )
                                 </li>
                             </ul>
                             <p>
@@ -178,13 +180,18 @@ <h4 id="Phar">Phar</h4>
                             <pre>curl https://keys.openpgp.org/vks/v1/by-fingerprint/56697956EBD451594B03AEFDD5F0CB76E2DD74F8 | gpg --import
 gpg --verify phing-3.0.0.phar.asc</pre>
                         </div>
+                    </div>
+                    <br>
+                    <br>
+                    <div class="row">
                         <div class="col-sm-6">
                             <h4 id="PEAR">PEAR (deprecated)</h4>
                             <p>
                                 <strong>Our PEAR channel has been deprecated. Phing is only
                                     available through Composer or as a .phar archive.</strong>
                             </p>
-
+                        </div>
+                        <div class="col-sm-6">
                             <h4 id="Manualinstall">Manual install (deprecated)</h4>
                             <p>
                                 <strong>Phing is only available through Composer or as a