This article aims to show you what you can do to constructively edit Wikipedia.
Create an Account.
You will need to create a Wikipedia account first. Although this is not a must, you will be given more privileges than a non-registered user. For all of these privileges to take place, your account must be at least four days old and have at least ten edits.
Understand their policies.
Also, read and get familiar with Wikipedia’s core policies. Wikipedia has many guidelines and policy pages. These are the most crucial: Neutral Point of View (NPOV), No Original Research (NOR/OR), and Verifiability. Make sure you understand these in order to avoid breaching any rules.
Work on the stubs {{stub}}.
These are articles that are not complete or written in full detail. You can help by adding content to the articles currently marked as stubs. Articles may also have a more detailed {{stub}} meaning that the stub has been sub-sorted. Sub-sorted stubs include anything from Arts, Cultures, Design, Broadcast Media, Radio, Television, Literature, and more. Related Article: How to export a Wikipedia page as a PDF.
Add photos.
You can upload as many pictures as you wish; however, you must provide detailed information on the source and the license of the file. If you cannot provide that information, do not upload any photos as they will still be deleted.
Write a new article.
The English version of Wikipedia currently has over 5 Million articles! You can help continue this growth by writing an article of your own. You should write an article about something you are very knowledgeable about.
Identify and remove spam.
Wikipedia is accessed by millions of people every day, thus, there tends to be a lot of spam. People who spam a page may have added inappropriate links, blanked the page, among others. You can help out by removing, or reverting this information and in the end, this will make Wikipedia a better place for people to gather information and resources.
Help out, new comers.
Wikipedia is a community. You can help out newcomers to make it a bigger and better community for the encyclopedia.
Do some maintenance activities.
This can help Wikipedia run optimally. This can be through removing copyright violations, fixing up articles, participating in deletion processes, and all sorts of other things. With the above methods, you can easily contribute to Wikipedia and make it a better knowledge hub.