Example: Winchelsea is a beautiful resort.
To source this, you would use the tag <ref>...</ref> with your source taking up the "..."
So to get this: Winchelsea is a beautiful resort, your coding would look like this: Winchelsea is a beautiful resort,<ref>Because I said so</ref>
References are usually to books or websites (though sometimes they're afterthoughts). When linking to a website, simply follow the same steps as you normally would.
The final step to references is showing them. First, create a new called References, using the coding: "==References==". Then insert the code: <references/> on the next line to automatically create a list of everything coded with the "ref" tags..
If you used the same reference repeatedly in an article, you don't have to put the whole source in multiple times. This is accomplished by giving the reference a name. The first citation has the format: <ref name="repeat"> ... </ref>. After that point to refer to the same reference again, use the following: <ref name="repeat"/>, with no other tags.