message: update README for clearer config
diff: @@ -9,22 +9,16 @@ This package is still a work-in-progress within the Stylable mono-repo. Once it
  ## Usage
  -Use the `process` utility imported from `@stylable/jest` to configure your Jest setup to support Stylable stylesheets, turning them into resolvable modules.
  -
  -> Note: Jest should also be configured to ignore `.st.css` files in its transformations.
  -
  -```ts
  -const { process } = require('@stylable/jest');
  -
  -const config = merge(jestProjectConfig, {
  +Add the transformation to the `jest.config.js` file:
  +```js
  +module.exports = {
  transform: {
  - '\\.jsx?$': require.resolve('babel-jest'),
  - '\\.st.css?$': process,
  + '\\.st\\.css?$': require.resolve('@stylable/jest'),
  },
  -});
  -
  -config.transformIgnorePatterns = (config.transformIgnorePatterns || [])
  - .concat(['/node_modules/(?!(.*?\\.st\\.css$))']);
  + transformIgnorePatterns: [
  + '/node_modules/(?!(.*?\\.st\\.css$))' // libraries publish .st.css files in their dist
  + ]
  +};
  ```
  ## License
  