Fix android Learn url to one that doesn't 404 ;) (#1348)

diff --git a/LottieSample/src/main/kotlin/com/airbnb/lottie/samples/MainActivity.kt b/LottieSample/src/main/kotlin/com/airbnb/lottie/samples/MainActivity.kt
index a0bcd90..2ae2d19 100644
--- a/LottieSample/src/main/kotlin/com/airbnb/lottie/samples/MainActivity.kt
+++ b/LottieSample/src/main/kotlin/com/airbnb/lottie/samples/MainActivity.kt
@@ -33,7 +33,7 @@
 
     private fun showShowcase() {
         val intent = CustomTabsIntent.Builder().build()
-        intent.launchUrl(this, "http://airbnb.io/lottie/android/android.html".toUri())
+        intent.launchUrl(this, "http://airbnb.io/lottie/#/android".toUri())
     }
 
     private fun showFragment(fragment: Fragment) {