Pull yourself together man, there's no such word as can't.
Links take two forms in the wiki ...
1) In double square brackets they link to pages within the wiki, example [[Acronyms]] will link to the Acronyms page (you just use the page title ... in bold at the top of each page). If you want another word or words to form the link you separate them with a vertical line, putting the title first, thus ... [[Acronyms|this link takes you to the acronyms page]]
2) In single square brackets they link to external sites, example [http://oil.palmergroup.co.uk] will link to what is probably one of the best oil collecting sites around. To make the text "Probably one of the best oil collecting sites around" behave as a link, you separate the URL from the text with a space, and put the URL first thus ... [[http://oil.palmergroup.co.uk Probably one of the best oil collecting sites around]]
Temped to use the term simples, but I won't!