Syntax highlighting for README.md

Author: ivuk

README.md

@@ -5,4 +5,19 @@ Parse SSL certificate information
 
 Usage:
 
- ./ssl-cert-parse.py -h
+```sh
+$ ./ssl-cert-parse.py -h
+usage: ssl-cert-parse.py [-h] [-a] [-b] [-d HOSTNAME] [-e] [-f FILENAME]
+ [-p PORT]
+
+optional arguments:
+ -h, --help show this help message and exit
+ -a, --all Show the entire output
+ -b, --basic Show the basic data output
+ -d HOSTNAME, --dest HOSTNAME
+ Set the hostname to connect to
+ -e, --extended Show the extended data output
+ -f FILENAME, --file FILENAME
+ Set the file that contains the SSL certificate
+ -p PORT, --port PORT Set the port to connect to
+```