Using this website
Browse around.
Look at the examples.
Read the advice about what to include on your own site, and the general advice - whatever is relevant to your situation.
If you're collecting your thoughts before you start making a new church website, a good idea is to create a document of your own (a word processor or any text editing program will do), and copy/paste any special points you want to remember into it. When you've done, you can save and/or print it, as you wish.