Update README.md

README.md

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 # Arjun
-Arjun is a python script for finding hidden GET & POST parameters.
+Arjun is a python script for finding hidden GET & POST parameters using regex and bruteforce.
+
+### Dependencies
+- requests
+
+### Usages
+Here's how you can scan a webpage for get parameters
+```
+python arjun.py -u http://example.com/index.php --get
+```
+For POST, just use the <b>--post</b> flag.
+
+Here's a screenshot you can fap to:</br>
+<img src='https://i.imgur.com/7BQv5qa.png' />
+
+#### License
+<a rel="license" href="http://creativecommons.org/licenses/by/4.0/"><img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by/4.0/80x15.png" /></a><br />This work is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 International License</a>.