You are welcome to start your own wiki outside of the en.wikipedia.org namespace; you can download the software here. If it is your own website, you can of course post as much detail about your club as you wish since it would not be subject to the standards of this encyclopedia. If you wish to edit here, though, you need to follow the policies and guidelines established by this community - particularly relevant here are the guideline on advertising, the guideline on conflict of interest, the notability guideline for organizations, and the definition of a secondary source.