add application form link

index.html

@@ -440,7 +440,7 @@ <h2 class="title text-primary mb-3">Our experience in the group</h2>
           <span class="sub-title mb-2 d-block">Application form</span>
           <h2 class="title text-primary">Join Us</h2>
           <p>To apply to our group, please fill following form. After reviewing your answers, we will contact you back for a 30 minutes interview to complete your application.</p>
-          <a href="#" class="btn btn-primary btn-md">Apply</a>
+          <a href="https://forms.gle/cCquZPpMHY1gRFCW7" class="btn btn-primary btn-md">Apply</a>
         </div>
       </div>
     </div> <!-- END .site-section -->