Add Demo

README.md

@@ -10,6 +10,8 @@ Replace `{{{ADDR}}}` and `{{{PORT}}}` according to your listener:
 
 After that, bring it onto your target system and either `bash polysh`, `python polysh` or `php polysh` it - or bring it into webroot and call it.
 
+![demo.gif](demo.gif)
+
 ## Credits
 
 Reverse shells taken from [revshells.com](https://www.revshells.com/), slightly modified for the poly magic.