added 'OpenSSL'

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

README.md

@@ -131,6 +131,7 @@ Before add pull request please see **[this](https://github.com/trimstray/the-boo
 ##### :black_small_square: SSL/Security
 
 <p>
+&nbsp;&nbsp;:small_orange_diamond: <a href="https://www.openssl.org/"><b>openssl</b></a> - is a robust, commercial-grade, and full-featured toolkit for the TLS and SSL protocols.<br>
 &nbsp;&nbsp;:small_orange_diamond: <a href="https://gnutls.org/manual/html_node/gnutls_002dcli-Invocation.html"><b>gnutls-cli</b></a> - client program to set up a TLS connection to some other computer.<br>
 &nbsp;&nbsp;:small_orange_diamond: <a href="https://github.com/nabla-c0d3/sslyze"><b>sslyze
 </b></a> - fast and powerful SSL/TLS server scanning library.<br>