Update README.md (#1769)

trietbui85 · web-flow · commit 6de2d73aad17 · 2020-03-27T11:56:26.000-04:00
The Facebook Android SDK link is quite old. We should point to the official Facebook Android SDK changelog in Github: https://github.com/facebook/facebook-android-sdk/blob/master/CHANGELOG.md
diff --git a/auth/README.md b/auth/README.md
@@ -68,7 +68,7 @@ dependencies {
     implementation 'com.firebaseui:firebase-ui-auth:6.2.1'
 
     // Required only if Facebook login support is required
-    // Find the latest Facebook SDK releases here: https://goo.gl/Ce5L94
+    // Find the latest Facebook SDK releases here: https://github.com/facebook/facebook-android-sdk/blob/master/CHANGELOG.md
     implementation 'com.facebook.android:facebook-login:4.x'
 }
 ```

Original file line number	Diff line number	Diff line change
`@@ -68,7 +68,7 @@ dependencies {`
`68`	`68`	`implementation 'com.firebaseui:firebase-ui-auth:6.2.1'`
`69`	`69`
`70`	`70`	`// Required only if Facebook login support is required`
`71`		`- // Find the latest Facebook SDK releases here: https://goo.gl/Ce5L94`
	`71`	`+ // Find the latest Facebook SDK releases here: https://github.com/facebook/facebook-android-sdk/blob/master/CHANGELOG.md`
`72`	`72`	`implementation 'com.facebook.android:facebook-login:4.x'`
`73`	`73`	`}`
`74`	`74`	```