Update README.md

README.md

@@ -3,3 +3,18 @@ This is a Python script that adds and removes entries to your `hosts` file. It w
 
 I was tired of manually adding entries and never cleaning them up, so I created `hosts.py` to help manage that for me. 
 
+## Usage
+```
+hosts.py <command> [parameters]
+
+Commands:
+add <ip> <hostname> - Add an IP and corrosponding hostname to the hosts file
+del <ip | hostname> - Deletes the specified IP or hostname from the hosts file
+clear               - Clears out all ips/hostnames that were added by this utility
+
+Examples:
+hosts.py add 10.10.10.10 myhost.local
+hosts.py del 10.10.10.10
+hosts.py del myhost.local
+hosts.py clear
+```