update readme

Author: ogbanugot

README.md

@@ -32,8 +32,57 @@ convoy = Convoy({ "api_key": 'your_api_key', "uri": 'self-hosted-instance' })
 
 ## Usage
 
+### Get all groups
+
+```python
+(response, status) = convoy.group.all({ "perPage": 10, "page": 1 })
+```
+
+### Creating an Application
+
+An application represents a user's application trying to receive webhooks. Once you create an application, you'll receive a `uid` that you should save and supply in subsequent API calls to perform other requests such as creating an event.
+
+```python
+appData = { "name": "my_app", "support_email": "[email protected]" }
+(response, status)  = convoy.applications.create({}, appData)
+appId = response["data"]["uid"]
+
+```
+
+### Add Application Endpoint
+
+After creating an application, you'll need to add an endpoint to the application you just created. An endpoint represents a target URL to receive events.
+
+```python
+endpointData = {
+    "url": "https://0d87-102-89-2-172.ngrok.io",
+    "description": "Default Endpoint",
+    "secret": "endpoint-secret",
+    "events": ["*"],
+  }
+
+(response, status) = convoy.endpoint.create(appId, {}, endpointData)
+```
+
+### Sending an Event
+
+To send an event, you'll need the `uid` we created in the earlier section.
+
 ```python
-content, status = convoy.group.all({ "perPage": 10, "page": 1 })
+eventData = {
+    "app_id": appId,
+    "event_type": "payment.success",
+    "data": {
+      "event": "payment.success",
+      "data": {
+        "status": "Completed",
+        "description": "Transaction Successful",
+        "userID": "test_user_id808",
+      },
+    },
+  }
+
+(response, status) = convoy.event.create({}, eventData)
 ```
 
 ## Testing