docs(pluginutils): configure the correct options

[Plumbiu]

The dataToEsm API options example in the documentation is inconsistent with the output:

import { dataToEsm } from '@rollup/pluginutils';

const esModuleSource = dataToEsm(
  {
    custom: 'data',
    to: ['treeshake']
  },
  {
    compact: false,
    indent: '\t',
    preferConst: false,
    objectShorthand: false,
    namedExports: true
  }
);
/*
Outputs the string ES module source:
  export const custom = 'data';
  export const to = ['treeshake'];
  export default { custom, to };
*/

Rollup Plugin Name: {pluginutils}

This PR contains:

• bugfix
• feature
• refactor
• documentation
• other

Are tests included?

• yes (bugfixes and features will not be merged without tests)
• no

Breaking Changes?

• yes (breaking changes will not be merged unless absolutely necessary)
• no

Description

The right options should be:

const esModuleSource = dataToEsm(
  {
    custom: 'data',
    to: ['treeshake']
  },
  {
    compact: false,
    indent: '\t',
    preferConst: true,
    objectShorthand: true,
    namedExports: true
  }
);

[shellscape]