Add codesandbox repl
What
Adds a codesandbox REPL for majority of the matchers
Notes
This PR adds conventions around how the README is generated, instead of being the source of truth, the docs folder is the source of truth with a readme.template.md which can interpolate links to code examples.
Example of the REPL in action:
https://codesandbox.io/s/github/jest-community/jest-extended/tree/docs-sandbox/docs/sandbox?module=%2Fmatchers%2Fstring%2FtoIncludeRepeated.test.js
TODO
Do something about all contributors as it will be amending the wrong README i.e. not the source of truth in /docs
Housekeeping
- [x] Documentation is up to date
This is really cool
@mattphillips you gonna complete this? 😀
@mattphillips ping