how you do this depends on your tolerance for different types of learning.
for this type of thing I use a
home web server on a beat-up old PC with free & easy web server software. (abyss x1). it's so easy the hardest part is learning to port-forward your router. copy the "html" folder from your league into the web-enabled folder, then just give your father/brother/friend your IP address.
or you have to buy cheap web-hosting someplace
How the World Wide Web works - Explain that Stuff