message: Update: `purser-core` readme file
diff: -![Purser](../../../../assets/purser_300.svg)
  +![purser](../../../../.assets/purser_300.svg)
  -### @colony/purser-core
  +### [@colony](https://www.npmjs.com/org/colony)/purser-core
  -A collection of hepers, utils, validators and normalizers to assist the wallet modules.
  +A collection of helpers, `utils`, `validators` and `normalizers` to assist the wallet modules.
  -Unless you want something specific found in this modules, it doesn't need to be manually required as each module already makes use of it.
  +Unless you want something specific found in this module, it doesn't need to be manually required as each module already makes use of it internally.
  +
  +## Installation
  +```js
  +yarn add @colony/purser-core
  +```
  +
  +## Quick Usage
  +```js
  +import { bigNumber } from `@colony/purser-core/utils`
  +
  +const value = bigNumber('0.00000001').toWei();
  +
  +console.log(value); // {negative: 0, words: Array(4), length: 4, red: null}
  +```
  +
  +## Contributing
  +
  +This package is part of the [purser monorepo](https://github.com/JoinColony/purser) package.
  +
  +Please read our [Contributing Guidelines](https://github.com/JoinColony/purser/blob/master/.github/CONTRIBUTING.md) for how to get started.
  