readme update

Author: itzmestar

README.md

@@ -1,2 +1,64 @@
-# duneanalytics
-Unofficial Python Library for Dune Analytics
+# Dune Analytics
+
+[![Python 3.5](https://img.shields.io/badge/python-3.5-blue.svg)](https://www.python.org/downloads/release/python-350/)
+[![Python 3.6](https://img.shields.io/badge/python-3.6-blue.svg)](https://www.python.org/downloads/release/python-360/)
+[![Python 3.7](https://img.shields.io/badge/python-3.7-blue.svg)](https://www.python.org/downloads/release/python-370/)
+[![Python 3.8](https://img.shields.io/badge/python-3.8-blue.svg)](https://www.python.org/downloads/release/python-380/)
+[![Python 3.9](https://img.shields.io/badge/python-3.9-blue.svg)](https://www.python.org/downloads/release/python-390/)
+
+[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
+
+-------
+
+### Unofficial Python Library for [Dune Analytics](https://duneanalytics.com/)
+
+The library can be used to fetch the table data from `python` backend.
+
+#### Disclaimer: Use at your own risk! 
+It may not work for some/all urls.
+
+This library doesn't run the query, rather it fetches the query result from the backend.
+
+### Installation:
+
+use pip to install:
+
+``` 
+pip install duneanalytics
+```
+
+-----------
+
+### Authentication:
+
+You need to have `username` & `password` for [Dune Analytics](https://duneanalytics.com/)
+
+-----------
+
+### Example usage:
+
+```
+from duneanalytics import DuneAnalytics
+
+# initialize client
+dune = DuneAnalytics('username', 'password')
+
+# try to login
+dune.login()
+
+# fetch token
+dune.fetch_auth_token()
+
+# fetch query result id using query id
+# query id for any query can be found from the url of the query:
+# for example: 
+# https://duneanalytics.com/queries/4494/8769 => 4494
+# https://duneanalytics.com/queries/3705/7192 => 3705
+# https://duneanalytics.com/queries/3751/7276 => 3751
+
+result_id = dune.query_result_id(query_id=5508)
+
+# fetch query result
+data = dune.query_result(result_id)
+```
+