Lets say I have an html document on my desktop. How can I get this file on the internet so that whenever someone visits somedomain.name from their browser my HTML document appears?

I've tried googling it but there's such a huge amount of information out there that I can't decide where to start. Also they're always asking me for money. Is there a way I can do this from my own computer without spending anything?

Thanks for reading, any help is greatly appreciated