[Portuguese] Localize 'Immutable Infrastructure'

[rsaraiva]

Localize: https://glossary.cncf.io/immutable-infrastructure/

[rafaelmnatali]

@rsaraiva @edsoncelio I can work on this. Could you please assign it to me?

thanks

[edsoncelio]

@rsaraiva @edsoncelio I can work on this. Could you please assign it to me?

thanks

There's a PR opened for this one, I'll wait for a answer from @rsaraiva :)