diff --git a/README.md b/README.md
index 579543b..854c68c 100644
--- a/README.md
+++ b/README.md
@@ -157,15 +157,21 @@ adjacent grid squares.
 
 ### Browsers
 
-We intend to support:
+We test and support:
 
 * Chrome
-* Chrome Android (tablets)
-* Edge Webkit
 * Firefox
 * Safari
 * Safari iOS (iPad)
 
+We intend to test in future:
+
+* Chrome Android (tablet)
+
+Known broken:
+
+* Edge WebKit
+
 ## Author
 
 Ian Gulliver