Begone typos and grammar mistakes! Begone fat-fingered auto corrected slip-ups and textual despair! The edit button is coming to Twitter.On Thursday, after countless pleas from many of its more than 237 million users, some people will start being able to click a button on the social media service to edit a tweet after they have posted it. It has only been about 15 years, nine months and 22 days since they started asking for that ability.Since Twitter was unveiled in 2006, the basics of using it have been simple and constant: You wrote a tweet, you posted it — and then you dealt with the consequences. There were no take-backs on the timeline.That makes the edit button perhaps the biggest shi …
