Replace old logo

Author: leemunroe

README.md

@@ -1,5 +1,5 @@
 <p align="center">
-  <img src="https://onesignal.com/assets/common/logo_onesignal_color.png"/>
+  <img src="https://media.onesignal.com/cms/Website%20Layout/logo-red.svg"/>
 </p>
 
 ### OneSignal Android Push Notification Plugin
@@ -28,4 +28,4 @@ For account issues and support please contact OneSignal support from the [OneSig
 To make things easier, we have published demo projects in the `/Examples` folder of this repository.
 
 #### Supports:
-* Tested from Android 4.0.3 (API level 15) to Android 9.0 (28)
+* Tested from Android 4.0.3 (API level 15) to Android 9.0 (28)