**Typo:** There's a typo in the code, causing a mis-match with the README example. the README uses `gutterBreakpoints` (lowercase p), which does not work I tried `gutterBreakPoints` (uppercase P) and it does work. I don't know if the code is wrong or if the doc is wrong, but one of them is wrong. ---- **Missing Type:** Also, in the `@types/react-responsive-masonry"` package, the `gutterBreakpoints` prop is missing altogether. 