Startup Idea: Automated Text Correction Software for Writers

Startup idea to develop a comprehensive text correction software for writers, beyond word fixing like Grammarly, it should also cater to overall sentence correction such as fixing misplaced periods.

I am a writer, and I would want a software that auto fixs. In grammerly it fixes words, but if I accidentally do something like "hello how. are you doing today" there should be software that can fix it.