> What are Tag Wikis?
The tag wiki excerpt is a brief plain text introduction to the topic that the tag represents. It is shown at the top of tag question lists, and as a tooltip wherever the tag appears. Complete this first!
The full tag wiki is a detailed introduction to the topic, suitable as a destination for those curious about it:
► what questions should have this tag?
► some basic definitions
► brief introduction to the subject
► important links for learning more
► one reasonably sized page