SAN FRANCISCO, United States (AFP) — Facebook co-founder Mark Zuckerberg and his wife welcomed their second daughter — August — to the world on Monday with a post on the leading social network. As they did with after the birth of their first daughter, Maxima, in late 2015, the couple wrote the girl a letter, but this one spoke of reveling in the wonder of childhood instead of visions of a better world on the […]