Add Microsoft Store link

Author: mymindstorm

README.md

@@ -6,7 +6,7 @@
 
 ## Available for Chrome and Firefox
 
-[<img src="https://raw.githubusercontent.com/wiki/Authenticator-Extension/Authenticator/readme-images/chrome-web-store.png" title="Chrome Web Store" width="170" height="48" />](https://chrome.google.com/webstore/detail/authenticator/bhghoamapcdpbohphigoooaddinpkbai) [<img src="https://raw.githubusercontent.com/wiki/Authenticator-Extension/Authenticator/readme-images/firefox-add-ons.png" title="Firefox Add-ons" width="170" height="48" />](https://addons.mozilla.org/en-US/firefox/addon/auth-helper?src=external-github)
+[<img src="https://raw.githubusercontent.com/wiki/Authenticator-Extension/Authenticator/readme-images/chrome-web-store.png" title="Chrome Web Store" width="170" height="48" />](https://chrome.google.com/webstore/detail/authenticator/bhghoamapcdpbohphigoooaddinpkbai) [<img src="https://raw.githubusercontent.com/wiki/Authenticator-Extension/Authenticator/readme-images/firefox-add-ons.png" title="Firefox Add-ons" width="170" height="48" />](https://addons.mozilla.org/en-US/firefox/addon/auth-helper?src=external-github) [<img src="https://raw.githubusercontent.com/wiki/Authenticator-Extension/Authenticator/readme-images/microsoft-store.png" title="Microsoft Store" height="48">](https://www.microsoft.com/store/apps/9P0FD39WFFMK?ocid=badge)
 
 Authenticator is one of the [featured extensions on Firefox Add-ons this month](https://blog.mozilla.org/addons/2018/07/02/julys-featured-extensions-2/)! 
 
@@ -23,4 +23,4 @@ gts fix
 npm run [chrome, firefox, edge]
 ```
 
-Note that Windows users should download [Cygwin](http://cygwin.com/) to build. Building for Edge requires the [Windows App Certification Kit](https://developer.microsoft.com/en-us/windows/develop/app-certification-kit)
+Note that Windows users should download [Cygwin](http://cygwin.com/) to build. Building for Edge requires the [Windows App Certification Kit](https://developer.microsoft.com/en-us/windows/develop/app-certification-kit)