Update README.md

Author: De-Panther

README.md

@@ -39,7 +39,9 @@ Or just use this as a Unity Package (UPM), more info [here](Packages/webxr/READM
 
 This is a list of browsers and platforms that the WebXR Export demo was tested on.
 
-Google Chrome on Widnwos.
+Google Chrome on Windows.
+
+Microsoft Edge on Windows.
 
 Mozilla Firefox on Windows.
 
@@ -49,6 +51,8 @@ Firefox Reality on Oculus Quest.
 
 Firefox Reality on Hololens 2 (Supports WebXR Hand Input).
 
+Microsoft Edge on Hololens 2 ([Currently in Insider preview](https://docs.microsoft.com/en-us/hololens/hololens-insider#how-to-use-webxr)).
+
 Google Chrome on Android (Supports both AR and VR sessions).
 
 Samsung Internet Browser on Android (Supports both AR and VR sessions).