adjust self-host landing

app/views/pages/landing.html.erb

@@ -8,7 +8,7 @@
             DocuSeal
           </h1>
         </div>
-        <h2 class="mb-16 text-lg text-center text-gray-500">
+        <h2 class="mb-16 text-lg text-center text-gray-600">
           A self-hosted and open-source web platform that provides secure and efficient digital document signing and processing.
         </h2>
       </div>
@@ -22,7 +22,7 @@
             </div>
             <h3 class="mb-4 text-2xl font-semibold">Easy to Start</h3>
             <p class="text-base text-gray-500">
-              Run on your own host using <a href="https://hub.docker.com/r/docuseal/docuseal" class="link link-neutral font-bold" target="_blank">Docker</a> container, or deploy on  your favorite managed PaaS with a single <a href="https:///www.docuseal.co/install" class="link link-neutral font-bold">click</a>.
+              Run on your own host using <a href="https://hub.docker.com/r/docuseal/docuseal" class="link link-neutral font-bold" target="_blank">Docker</a> container, or deploy on  your favorite managed PaaS with a single <a href="https://www.docuseal.co/install" class="link link-neutral font-bold">click</a>.
             </p>
           </div>
         </div>
@@ -70,3 +70,4 @@
     </div>
   </div>
 </section>
+<%= render 'shared/attribution' %>