v0.12.1 Last with ESLint 6.x support

[0.12.1] - 2020-05-28

This is the last version with support for ESLint 6.x and typescript-eslint v2.x

Added

• typescript version >= 3.2 in peerDependencies to allow compatibility with typescript-eslint v2.34

Changed

• Updated README.md, now includes default for Prettier v2
• Updated dependencies
• Use "^" instead "~" in the Prettierx version of dependencies