Regex learning game work in progress.
React and webpack setup: https://webpack.js.org/guides/getting-started https://jsramblings.com/creating-a-react-app-with-webpack/
- Fix displaying multiline messages.
- Show the substitutions in the message, highlight the failures in the message.
- Make validation logic more flexible.
- Format the messages to look like email, chat ext.
- More puzzles!
- Redirect all HTML paths to index.