Adding sponsor - elastic logo

Author: anivorlis

images/sponsors/Elastic_logo.png

@@ -573,7 +573,7 @@ <h3>SILVER</h3>
         <div class="row">
           <div class="col-md-12 d-flex justify-content-center">
             <a href="https://www.elastic.co/" target="_blank">
-                Elastic
+                <img src="images/sponsors/elastic_logo.png" width=200 alt="Elastic" class="img-fluid" style="max-width:600px;">
             </a>
           </div>
         </div>
@@ -587,7 +587,7 @@ <h3>PATRON</h3>
         <div class="row">
           <div class="col-md-12 d-flex justify-content-center">
             <a href="https://www.packtpub.com/en-us" target="_blank">
-              <img src="images/sponsors/Packt_Logo-02.jpg" alt="Packt Publishing" class="img-fluid" style="max-width:200px;">
+              <img src="images/sponsors/Packt_Logo-02.jpg" width=100 alt="Packt Publishing" class="img-fluid" style="max-width:200px;">
             </a>
           </div>
         </div>