change to single quote strings

nice work dude!

It would be great if the use of single or double quotes strings could be normalized.

IMO, all to single quotes, so we can set a good start point for beginners. Indeed you recommend https://github.com/feross/standard which states the single quote style.

Rules

2 spaces – for indentation
Single quotes for strings – except to avoid escaping

for example from

var firstCat = { name: "bill", lastName: "the cat", address: "The Alley" }

to

var firstCat = { name: 'bill', lastName: 'the cat', address: 'The Alley' }

If you like the idea, I'll be glad to help with the change and make a PR.

Esamina gli esempi JavaScript del repository e confronta il quoting delle relative stringhe con lo stile richiesto con virgolette singole. Normalizza gli esempi applicabili, mantenendo le virgolette doppie quando eviterebbero l'escaping, quindi verifica che gli snippet documentati seguano coerentemente la regola indicata.