Update contents of website

Author: pkp-machine-user

index.html

@@ -4505,7 +4505,7 @@ <h1>PKP Plugins</h1>
 
                                 <td class="align-middle text-center version-column 3.4.0">
                                             <span class="text-nowrap">
-                                                <a href="https://github.com/pkp/immersion/releases/download/v1_1_2-5/immersion-v1_1_2-5.tar.gz" class="text-primary">1.1.2.5</a>
+                                                <a href="https://github.com/pkp/immersion/releases/download/v1_1_2-6/immersion-v1_1_2-6.tar.gz" class="text-primary">1.1.2.6</a>
                                             </span>