Who is Yu Zidi, China’s 13-year-old swimming sensation?

What happened
The teen phenomenon won her second gold medal in the 200m medley in 2:06.10 to set a new Games and Asian record.
Summary assembled by rule from the sources below

The teen phenomenon won her second gold medal in the 200m medley in 2:06.10 to set a new Games and Asian record.
Summary assembled by rule from the sources below