message: Remove v1-only date-fns-timezone from docs
diff: ## Table of Contents
  -- [Overview](#usage)
  +- [Overview](#overview)
  -- [`date-fns-tz`](#supported-languages)
  -
  -- [`date-fns-timezone`](#adding-new-language)
  +- [`date-fns-tz`](#date-fns-tz)
  ## Overview
  @@ -59,44 +57,6 @@ const pattern = 'D.M.YYYY HH:mm:ss.SSS [GMT]Z (z)'
  const output = format(zonedDate, pattern, { timeZone })
  ```
  -### More Info
  +### Links
  - [API / Usage Scenarios](https://github.com/marnusw/date-fns-tz#time-zone-helpers)
  -
  -
  -## [`date-fns-timezone`](https://www.npmjs.com/package/date-fns-timezone)
  -
  -Provides parsing and formatting date strings and time zone conversions supporting IANA time zones,
  -following the design of functions in `date-fns`. List of canonical time zone names is provided by
  -[`timezone-support`](https://github.com/prantlf/timezone-support).
  -
  -The data from `timezone-support` is bundled with the application, but is fairly light-weight
  -and allows implementing a complete features set for time zone management.
  -
  -Compatible with `date-fns` version 1
  -
  -License: MIT
  -
  -### Synopsis
  -
  -```js
  -const { listTimeZones } = require('timezone-support')
  -const { parseFromTimeZone, formatToTimeZone } = require('date-fns-timezone')
  -
  -// List canonical time zone names: [ 'Africa/Abidjan', ... ]
  -const timeZones = listTimeZones()
  -
  -// Set the date to "2018-09-01T16:01:36.386Z"
  -const utcDate = parseFromTimeZone('2018-09-01 18:01:36.386', { timeZone: 'Europe/Berlin' })
  -
  -// Set the output to "1.9.2018 18:01:36.386 GMT+02:00 (CEST)"
  -const date = new Date('2018-09-01Z16:01:36.386Z')
  -const format = 'D.M.YYYY HH:mm:ss.SSS [GMT]Z (z)'
  -const output = formatToTimeZone(date, format, { timeZone: 'Europe/Berlin' })
  -```
  -
  -### More Info
  -
  -- [Installation and Getting Started](https://github.com/prantlf/date-fns-timezone#installation-and-getting-started)
  -- [Usage Scenarios](https://github.com/prantlf/date-fns-timezone/blob/master/docs/usage.md#usage-scenarios)
  -- [API Reference](https://github.com/prantlf/date-fns-timezone/blob/master/docs/API.md#api-reference)
  