Update index.html

index.html

@@ -4,6 +4,7 @@ section_id: home
 slides:
 - text: OPEN SOURCE DESIGN AND USABILITY SERVICES
   subtitle: Ura supports Open Source and Free Software Projects with Usability, Visual Identity and User Experience Design, no matter if small grassroots or established enterprise. We share Open Source Design principles.
+  overlay: overlay
   button:
     text: What is it?
     url: http://opensourcedesign.net
@@ -18,6 +19,7 @@ slides:
   image: images/@stock/half-3.jpg
 - text: Projects across industry and communities
   subtitle: We have an Open Source background ourselves and have been core contributors to various projects. We understand Open Source and Communities unlike most design agencies. Have a look at our past projects to see if we are a good fit.
+  overlay: overlay
   button:
     text: Showcases
     url: projects