Update README.md

Documentation

README.md

@@ -1,2 +1,54 @@
 # Donation-Alerts-API-Python
 This module for python. With help this module, you can interact with API Donation Alerts
+
+`pip install donationalerts_api -U`
+
+[PyPi](https://pypi.org/project/donationalerts-api/)
+
+[Official documentation Donation alerts API](https://www.donationalerts.com/apidoc)
+
+[Donation alerts application clients](https://www.donationalerts.com/application/clients)
+
+
+|Main class|Description|
+|----------|-----------|
+|DonationAlertsApi(client_id, client_secret, redirect_uri, scope)|Request to API Donation Alerts|
+
+|Method|Description|
+|------|-----------|
+|login()|Returns link for connect to API|
+|get_code()|Returns code access application|
+|get_access_token(code)|Receive access token for the application (necessarily: transfer argument code which you got by get_code)|
+|get_donations(access_token)|Receive information about donate (messages)|
+|get_user(access_token)|Receive information about user|
+|send_custom_alert(access_token, external_id, headline, messages, image_url=None, sound_url=None, is_shown=0)|Send custom alert|
+
+
+### Example:
+```py
+from flask import Flask, redirect
+from donationalerts_api import DonationAlertsApi
+
+client = Flask(__name__)
+api = DonationAlertsApi("9999", "a43f67k9920h01a2wdw", "http://127.0.0.1:5000/login", "scopes")
+
+
+@client.route("/", methods=["get"])
+def index():
+  redirect(api.login())
+  
+
+@client.route("/login", methods=["get"])
+def login():
+  code = api.get_code()
+  access_token = api.get_access_token(code)
+  
+  user = api.get_user(access_token)
+  donations = api.get_donations(access_token)
+  
+  api.send_custom_alert(access_token, 12, "Test headline", "Test something message...")
+  
+  return user
+```
+
+![](https://static-s.aa-cdn.net/img/gp/20600007776348/FZc95BN57EpF2FOL2JDLaRQ1H2ibGnRVbvAY_F6sja-C8_q1qQGCXZYcNTjTZi7ZISE=w300?v=1)