typo

index.html

@@ -40,7 +40,7 @@
 
       <p>The course web site was developed and tested primarily with
       Google Chrome. We support current versions of Mozilla Firefox as
-      well. The videos player is designed to work with Flash. While we
+      well. The video player is designed to work with Flash. While we
       provide a non-Flash fallback for the video, as well as partial
       support for Internet Explorer, other browsers, and tablets,
       portions of the functionality will be unavailable. </p>