Serena Williams could become the first billionaire sports woman thanks to her investments. With Serena Ventures, the 23-time American Slam champion has raised $ 111 million and has invested in more than 50 start-ups. Williams said to Black Entreprise: “As an angel investor, you can only do so much.I knew I wanted to create a fund, but I worked backwards, using my own capital and then creating a track record and getting to know everyone.” “Less than two percent of all VC money goes to women? I really wanted to bring diversity to VC the way I could.And the only way to change those n …