There is nothing to worry about. Gap will be closed once permanent teeth will start erupting. Only thing is if there is soft tissue mass present in between upper two front tooth, that has to be corrected when time will be appropriate. You can visit a specialist dentist
(pedodontist) regarding the same. If no tissue mass present, just observe about thumb sucking or tongue thrusting habit for your baby. That will be a problem after 4-5 years of age.