Angelite:
I wanna write an article in MDL but how do I do that??!!
You can check out this forum thread and read the first post in that thread on how to go about writing articles. But you also should know that at the moment, new writers are not allowed to write new articles, as it explains here in this post. If you'd still like to write an article in the future, it's best to first get familiar with MDL's writing rules, which you can all find in the first link I gave above. (: