If you are new to wikia, or need to know how to edit like a good person, here is the guide!
You can fix grammar on the page. If it uses the wrong usage of "You're" or "Your". Fix it to the right use. If the article said "Grab you're bags and run out the door!" then fix it to "Grab your bags and run out the door!" Same thing goes for punctuation. If the article says, "And the man with the scarf said 'Go to your room.' " Spot it yet? You have to fix the word 'said' to 'said,' and the period at the end to an exclamation mark.
You can also fix words to BETTER words. Like instead of "He swung the sword at naruto." Instead of pronouns, use names, but not all the time. Also capitalize names also. So, use "Zabuza lashed the sword at Naruto!" See the difference? It's more exciting than the last sentence.
Removing vandalism. If someone replaced a page from "A kid named Devin, who was 17 years old walked to school..." to something similar to "dciu3iruwtuwrfewfauohrwfosd" or a swear word, just undo it. If it keeps happening, report it.