Selecting [`elem`](https://github.com/Nuclides/github-highlight-selected/blob/master/src/highlight-selected.js#L12) will also highlight [`elements`](https://github.com/Nuclides/github-highlight-selected/blob/master/src/highlight-selected.js#L31). Or selecting [`el`](https://github.com/Nuclides/github-highlight-selected/blob/master/src/highlight-selected.js#L35) will match both above words.
