Add Advanced Usage

README.md

@@ -31,6 +31,45 @@ if __name__ == "__main__":
     app.run(host="0.0.0.0", port=80)
 ```
 
+## Advanced Usage:
+
+```
+import os
+from github_webhook import Webhook
+from flask import Flask
+
+app = Flask(__name__)  # Standard Flask app
+webhook = Webhook(app, endpoint="/postreceive", secret='postreceivesecret') # Defines '/postreceive' endpoint
+
+@app.route("/")        # Standard Flask endpoint
+def hello_world():
+    return "Hello, World!"
+
+@webhook.hook()        # Defines a handler for the 'push' event
+def on_push(data):
+    #print("Got push with: {0}".format(data))
+    print(os.popen("sh ~/webhook.sh").read())
+
+if __name__ == "__main__":
+    try:
+        port_number = int(sys.argv[1])
+    except:
+        port_number = 8888
+    app.run(host="0.0.0.0", port=port_number, debug=False)
+```
+
+If code is `webhook = Webhook(app, endpoint="/postreceive", secret='postreceivesecret')` and `port_number = 8888`:
+Payload URL settting is resemble: http://yourwebsite:8888/postreceive
+Secret settting is `postreceivesecret`
+
+If with no secret setting:
+`webhook = Webhook(app, endpoint="/postreceive")`
+
+
+If code is `webhook = Webhook(app)`:
+it'll use default way: `/postreceive`
+
+
 ## License
 
 The `python-github-webhook` repository is distributed under the Apache License (version 2.0);