Why you should contribute
If you read this wiki you should contribute. Basically, we need readers to make contributions for this wiki to really work. No matter how little you know about the mathematical theory you will find typos and small errors on pages as you read them. If you start to work through the mathematics you will find errors in the equations, gaps in the derivations or points which confuse you and where you had to think hard to make progress.
If you make a contribution to fix these typos, add in extra information, or make requests you will be contributing in a very meaningful way. We know it is a slight hassle to sign up (and we only require this because of problems with spam) but it is not all that difficult and does not require you to divulge your mother's middle name or equivalent.
Finally, we notice every edit and it makes us feel great that you have gone to all this trouble.