Updated browser icons in README (#2238)

Summary:
**Summary**

Updated README to show current browser icons in compatibility table
Pull Request resolved: #2238

Reviewed By: elboman

Differential Revision: D18226486

Pulled By: mrkev

fbshipit-source-id: 3aed87817e9a0a9ea0b08809420b04e7411df3f2

README.md

@@ -160,7 +160,7 @@ comment inputs, [Notes](https://www.facebook.com/notes/), and
 
 ## Browser Support
 
-| ![IE / Edge](https://raw.githubusercontent.com/godban/browsers-support-badges/master/src/images/edge.png) <br /> IE / Edge | ![Firefox](https://raw.githubusercontent.com/godban/browsers-support-badges/master/src/images/firefox.png) <br /> Firefox | ![Chrome](https://raw.githubusercontent.com/godban/browsers-support-badges/master/src/images/chrome.png) <br /> Chrome | ![Safari](https://raw.githubusercontent.com/godban/browsers-support-badges/master/src/images/safari.png ) <br /> Safari | ![iOS Safari](https://raw.githubusercontent.com/godban/browsers-support-badges/master/src/images/safari-ios.png) <br />iOS Safari | ![Chrome for Android](https://raw.githubusercontent.com/godban/browsers-support-badges/master/src/images/chrome-android.png) <br/> Chrome for Android |
+| ![IE / Edge](https://raw.githubusercontent.com/alrra/browser-logos/master/src/edge/edge_32x32.png) <br /> IE / Edge | ![Firefox](https://raw.githubusercontent.com/alrra/browser-logos/master/src/firefox/firefox_32x32.png) <br /> Firefox | ![Chrome](https://raw.githubusercontent.com/alrra/browser-logos/master/src/chrome/chrome_32x32.png) <br /> Chrome | ![Safari](https://raw.githubusercontent.com/alrra/browser-logos/master/src/safari/safari_32x32.png) <br /> Safari | ![iOS Safari](https://raw.githubusercontent.com/alrra/browser-logos/master/src/safari-ios/safari-ios_32x32.png) <br />iOS Safari | ![Chrome for Android](https://raw.githubusercontent.com/alrra/browser-logos/master/src/chrome/chrome_32x32.png) <br/> Chrome for Android |
 | --------- | --------- | --------- | --------- | --------- | --------- |
 | IE11, Edge [1, 2]| last 2 versions| last 2 versions| last 2 versions| not fully supported [3] | not fully supported [3]