Add iiest logo asset

Author: arnabsen1729

Diff for: public/iiest-logo.png

@@ -4,7 +4,7 @@
       <div class="flex justify-between items-center border-b-2 border-gray-100 dark:border-gray-800 py-6 md:justify-start md:space-x-5">
         <div class="flex justify-start lg:flex-1">
           <a href="https://www.iiests.ac.in/" target="_blank" rel="noreferrer" class="flex-none">
-            <img src="https://oldwww.iiests.ac.in/images/iiest-logo.png" width="80" height="80" />
+            <img src="/iiest-logo.png" width="80" height="80" />
           </a>
           <router-link to="/">
             <span class="sr-only">CodeIIEST</span>