Prevent adjacent inline elements not separated by whitespace. #1155
FYI, this is my first time writing an eslint rule.
I wrote this because I want to be warned when I have adjacent inline elements without any whitespace, as it affects the way the page looks when unstyled, and may affect the way search engines see the page.
Let me know if you think any changes are needed. If this is something you're interested in merging I'll add the related docs.