what is the meaning of keep it up in this situation

Question

my manager send me an email asking me to create two documents.

i create them in two days.

i send her these documents and she replied to me Keep it up

what did she mean?

does she imply that i should have done them faster?

does she imply that i have to keep awake for my mistakes?

or something else?

Answer 1

Keep it up is used to encourage someone to continue doing something:

"You're doing very well everybody. Keep it up!"

Source: http://dictionary.cambridge.org/dictionary/british/keep-it-up