Welcome to Wikipedia:
Remember the five pillars of Wikipedia. 

  Wikipedia is an encyclopedia incorporating elements of general and specialized encyclopedias, almanacs, and gazetteers. All articles must strive for verifiable accuracy: unreferenced material may be removed, so please provide references. Wikipedia is not the place to insert personal opinions, experiences, or arguments. Original ideas, interpretations, or research cannot be verified, and are thus inappropriate. Wikipedia is not a soapbox; an advertising platform; a vanity press; an experiment in anarchy or democracy; an indiscriminate collection of information; or a web directory. It is not a newspaper or a collection of source documents; these kinds of content should be contributed to the Wikimedia sister projects.   Wikipedia has a neutral point of view, which means we strive for articles that advocate no single point of view. Sometimes this requires representing multiple points of view, presenting each point of view accurately, providing context for any given point of view, and presenting no one point of view as "the truth" or "the best view". It means citing verifiable, authoritative sources whenever possible, especially on controversial topics. When a conflict arises regarding neutrality, declare a cool-down period and tag the article as disputed, hammer out details on the talk page, and follow dispute resolution.  Wikipedia is free content that anyone may edit. All of Wikipedia's text is licensed under the Creative Commons Attribution-Sharealike 3.0 Unported License (CC-BY-SA); much of it is also licensed under the GNU Free Documentation License (GFDL). It may be distributed or linked accordingly. Recognize that articles can be changed by anyone and no individual exclusively controls any specific article; therefore, any writing you contribute can be mercilessly edited and redistributed at will by the community. Do not infringe on copyright or submit work licensed in a way incompatible with Wikipedia's licensing.  Wikipedia has a code of conduct: Respect your fellow Wikipedians even when you may not agree with them. Be civil. Avoid conflicts of interest, personal attacks and sweeping generalizations. Find consensus, avoid edit wars, follow the three-revert rule, and remember that there are  articles on the English Wikipedia to work on and discuss. Act in good faith, never disrupt Wikipedia to illustrate a point, and assume good faith on the part of others. Be open and welcoming.   Wikipedia does not have firm rules besides the five general principles presented here. Be bold in editing, moving, and modifying articles. Although it should be the aim, perfection is not required. Do not worry about making mistakes. In most cases, all prior versions of articles are kept, so there is no way that you can accidentally damage Wikipedia or irretrievably destroy content.
Sincerely