adding header for Sept 10th event

adding header for Sept 10th event

Author: OliveCannon

layouts/partials/header.html

@@ -85,8 +85,7 @@
 <section class="notice bg-light">
   <div class="container">
     <div class="row align-items-center">
-      <div class="col-md-12 text-center">Join us on Tuesday, August 13th, at 5pm BST / 6pm CEST / 11am CDT / 9am PDT when three of our InnerSource Commons Foundation members, Addie Girouard
-        , from Thirdman Agency, Brittany Istenes, from Fannie Mae, and Chan Voong, from Comcast, will host a call on          <a href="https://bit.ly/ABCISC" class="btn-link ml-1" target="_blank">The A,B,Cs of InnerSource.
+      <div class="col-md-12 text-center">Join us on Tuesday, September 10th, at 9am BST / 10am CEST / 1:30pm IST / 6pm AEST when Isabel Drost-Fromm, from Europace AG and InnerSource Commons Foundation, will discuss  <a href="https://bit.ly/ISC10sep" class="btn-link ml-1" target="_blank">InnerSource as one step towards Open Source.
             <i class="ti-arrow-right"></i></a>
         </p>
       </div>