make money by correcting others writing mistakes

As everybody knows there are a lot of online jobs that pay you for servicing them and correcting other's grammatical mistakes is another one of them which is called proofreading, for clarifying it in proofreading you need to rate other's text or documents
Based on the grammatical mistakes that their text has so by this the writer will improve his/her text, and the writers actually pay you for helping them.
If you still don't understand how it works it is something like completing a survey but in this one, you need to read a text or a story.
And since there were a lot of apps and websites to work in as a proofreader I will put it on you to decide which one you want to choose however if you don't know any here are some good apps and websites to work in as a proofreader make sure to check them out.
https://www.liveabout.com/how-to-get-paid-to-read-1360670