Contact has been added

index.html

@@ -152,8 +152,8 @@
           </div>
           <div class="contact-card" id="contact-details">
             <span class="contact-card-label">START A CONVERSATION</span>
-            <span class="contact-placeholder">[Add preferred company contact email]</span>
-            <span class="contact-card-note">Contact details to be provided by EssDeeBee Tech LLC.</span>
+            <a class="contact-placeholder" href="mailto:sergei.dzeboev@essdeebee.com">sergei.dzeboev@essdeebee.com</a>
+            <span class="contact-card-note">Reach out to discuss your project or technical needs.</span>
             <span class="contact-card-mark" aria-hidden="true">↗</span>
           </div>
         </div>