Ask yourself the question: "why would anyone waste their time to help You?"
In my opinion the reasons can be several:
1. this is a very short code and the check will not take much time here (the toaster)
2. this code will be useful for other people, then as suggested on github
3. not 1 or 2 - then freelance out there for the money will do whatever you ask
And for the embed code https://jsfiddle.net, http://codepen.io, phptester.net