Error(s) in doc.

[GHNewbiee]

Prerequisites

• I have written a descriptive issue title
• I have searched existing issues to ensure the issue has not already been raised

Issue

• hook: See the section Custom Fastify hook name (default: onResponse)

As per code:

const defaultOptions = {
  origin: '*',
  methods: 'GET,HEAD,PUT,PATCH,POST,DELETE',
  hook: 'onRequest',
  preflightContinue: false,
  optionsSuccessStatus: 204,
  credentials: false,
  exposedHeaders: null,
  allowedHeaders: null,
  maxAge: null,
  preflight: true,
  strictPreflight: true
}

default is onRequest, isn't it? Tia

[Uzlopak]

provided PR #254