Update date

Author: sachinprasadhs

theme/landing.html

@@ -86,7 +86,7 @@
 
     <div class="survey__banner">
       <a href="https://google.qualtrics.com/jfe/form/SV_5psTvNYQKv2mAwC">
-        Shape the future of Keras! Take a quick 3-minute survey by October 17 to share your experience.
+        Shape the future of Keras! Take a quick 3-minute survey by October 20 to share your experience.
       </a>
     </div>