You've successfully set up OneSignal App ID in Appsgeyser Dashboard using our guide, and now you want to send
                                    Push Notification to your users. 
Please follow the steps below. 
- Go to https://app.onesignal.com/apps and
                                        select the app:
- Now you should see this app Dashboard. Please click "New Push":
- Enter a name for this campaign and select an audience:
- Next, set up your Push - add Title, Message, Image, and change Platform and
                                        other settings if needed:
- Set up Delivery Schedule and click "Review and Send":
- Review your Message and click "Send
                                        Message":
 Done!
 You've sent your first Push Notification.
