Update example browser usage - /example-typescript

[laurengarcia]

Feature request:

Updates the example browser bundling use-case to use Typescript & Parcel (was using browserify + vanilla JS before)

Checklist:

• [X] update README (if applicable)
• [N/A] update ROADMAP (if applicable)
• [X] update CHANGELOG
• [X] index.d.ts: ensure parameters, options & Result are still correct
• [X] package.json: bump version