When you start a wiki, it is hard for people to find it. To get readers and new editors you will need to spread the word.
The first people you can promote your wiki to is people you know. Do you have friends who share your passion? They may be your first editors!
The main way that people will find your wiki is by using search engines such as Google. To get your wiki noticed by Google takes a lot of work, but will really help in bringing in readers, and hopefully editors too!
The most important part of getting seen by Google is to write good quality, original, and accurate content. You will need to write a lot of pages, we recommend at least 50, and create strong links between them. That will help search engines find you and increase your chances of being found in searches.
50 is a lot, but don't let that discourage you. The articles don't have to be long, and you can add content like lists. Those are something people enjoy, and give you a good opportunity to link to other articles on your wiki.