Add kotlin coroutine plugin screenshots (#76)

* Add kotlin coroutine plugin screenshots

* Use - to replace whitespace
3 files changed
tree: 3c13dab6e968d0e803fad006f208ef5b6fe4de16
  1. .gitignore
  2. .travis.yml
  3. README.md
  4. docs/
  5. package-lock.json
  6. package.json