[DOCS] Adds logo to the landing page hero image and changes tagline. (#2046) (#2047)

Author: szabosteve

docs/index-custom-title-page.html

@@ -60,7 +60,7 @@
         <h2>Documentation</h2>
       </p>
       <p>
-        The official Ruby client provides a low-level client for communicating with an Elasticsearch cluster.
+        The official Ruby client provides one-to-one mapping with Elasticsearch REST APIs.
       </p>
       <p>
         <a href="https://www.elastic.co/guide/en/elasticsearch/client/ruby-api/current/ruby-install.html">
@@ -69,7 +69,7 @@ <h2>Documentation</h2>
       </p>
     </div>
     <div class="col-md-6 col-12">
-      <img class="w-100" src="https://images.contentstack.io/v3/assets/bltefdd0b53724fa2ce/blta0a3d914dc5d8070/641d7fac80a10d107c7294e8/ruby-es-lp-hero.png" />
+      <img class="w-100" src="https://images.contentstack.io/v3/assets/bltefdd0b53724fa2ce/blt4f322d51b4812e0a/64255eebde06a31192f4399a/ES_Ruby_landing_page.png" />
     </div>
   </div>
 
@@ -173,4 +173,6 @@ <h4 class="mt-3">
     </div>
   </div>
 
-  <p class="my-4"><a href="https://www.elastic.co/guide/index.html">View all Elastic docs</a></p>
+  <p class="my-4"><a href="https://www.elastic.co/guide/index.html">View all Elastic docs</a></p>
+
+  <p class="my-4"><small>The Ruby logo available <a href="https://www.ruby-lang.org/en/about/logo/">here</a> is released under the Creative Commons <a href="https://creativecommons.org/licenses/by-sa/2.5/"> Attribution-Share Alike 2.5 License</a>.</small></p>