So I decided to make it right. I used chrome developer tools's edit html feature... I edited the html and behold the grammar error was gone. I read the paragraph again with pure delight. I love technology.
Idea Generated: There are lots of blog posts out there that have good content, but sometimes they are not written well or grammar errors exists because of lack of proof-reading.
What if there was a web-app where readers can correct blog posts or articles. Of course, it needs the approval of the author. There might be a 'Correct me if I have grammar errors' button of some sort somewhere in the post.
The editor is not allowed to edit the meaning of the content, only the typos and/or grammar errors, which of course needs the approval of the author. It's like github for blog posts and articles.