add 'BillCipher'

- signed-off-by: trimstray <trimstray@gmail.com>

README.md

@@ -986,6 +986,7 @@ CyberTalks</b></a> - talks, interviews, and article about cybersecurity.<br>
 &nbsp;&nbsp;:small_orange_diamond: <a href="https://github.com/s0md3v/XSStrike"><b>XSStrike</b></a> - most advanced XSS detection suite.<br>
 &nbsp;&nbsp;:small_orange_diamond: <a href="https://github.com/1N3/Sn1per"><b>Sn1per</b></a> - automated pentest framework for offensive security experts.<br>
 &nbsp;&nbsp;:small_orange_diamond: <a href="https://github.com/michenriksen/aquatone"><b>aquatone</b></a> - a tool for domain flyovers.<br>
+&nbsp;&nbsp;:small_orange_diamond: <a href="https://github.com/GitHackTools/BillCipher"><b>BillCipher</b></a> - information gathering tool for a website or IP address.<br>
 &nbsp;&nbsp;:small_orange_diamond: <a href="https://github.com/Ekultek/WhatWaf"><b>WhatWaf</b></a> - detect and bypass web application firewalls and protection systems.<br>
 &nbsp;&nbsp;:small_orange_diamond: <a href="https://www.openwall.com/john/"><b>John The Ripper</b></a> - is a fast password cracker, currently available for many flavors of Unix, Windows, and other.<br>
 &nbsp;&nbsp;:small_orange_diamond: <a href="https://hashcat.net/hashcat/"><b>hashcat</b></a> - world's fastest and most advanced password recovery utility.<br>