Add an example for beginners

[mohtamohit]

It would be a great help if you could include an example so that beginners can better understand the concept of migrations and how to implement stuff using this tool.

[dhui]

Yep, the documentation could be improved

[dhui]

A potential starting point for a guide: #42 (comment)

[mknycha]

Hey, is someone already working on this, or is it ok to contribute? Just wanted to make sure

[dhui]

@mknycha Feel free to take a crack at this and open a PR!

Were you planning on updating the README, godoc, and/or creating a new docs site?
The docs could use some cleanup and reorganization, but any help you're able to provide is appreciated.

[mknycha]

My idea was to start with README, we'll see how it goes ;)

[dhui]

Fixed in #258

[mohtamohit]

Thank you! :)