Incorrect README validation example

[SourceBoy]

Context

• node version: 8+
• joi version: 16
• environment (node, browser): All
• used with (hapi, standalone, ...): Standalone
• any other relevant information: See screenshot below

What are you trying to achieve or the steps to reproduce ?

await schema.validate({ username: 'abc', birth_year: 1994 }); // This should be validateAsync()

Which result you had ?

TypeError: schema.validate(...).then is not a function

What did you expect ?

.value

Screenshot:

[hueniverse]

Thanks!