There are a few things that you should try to keep in mind while editing software articles.
One of the primary goals of this project is to make computer science articles accessible, so you should make an effort to explain any jargon.
Try to ensure that every computer science article includes at least a few relevant references, and direct citations for anything that could be considered controversial. Wikipedia articles cannot be a substitute for a textbook (that is what Wikibooks is for), and references can give readers some idea of where they should go if they need more information than the article can provide. Just as important, providing further reading enables other editors to verify and to extend the given information, as well as to discuss the quality of a particular source.
You can find more information on citations and references, as well as several examples for how the cited literature should look, in the style guide on citations. Wikipedia's List of publications in computer science can be a good source of references and citations for computer science articles, as can Citeseer and Google Scholar.