By SERGIY VOLOSHYN and Valentyn Ogirenko VINNYTSIA, Ukraine, July 15 (Reuters) – A Ukrainian city far from the frontline grieved its dead including a 4-year-old girl with Down’s Syndrome on Friday, a day after a Russian missile attack killed at least 23 people and wounded scores. Ukraine said Thursday’s strike on an office building in Vinnytsia, a city of 370,000 people about 200 km (125 miles) southwest of Kyiv, had been carried out with Kalibr cruise missiles launched from a Russian submarine in the Black Sea. The missiles destroyed a nearby medical center and some people arriving for treatm…