Kate Martin has found a new home. The former Valkyries guard has landed with the Los Angeles Sparks after being waived by Golden State on Thursday . Martin is joining the L.A. squad on a development deal. “Kate is a gifted shooter, whose grittiness and winning history mesh well with Sparks basketball,” Sparks general manager Raegan Pebley said in a Sunday press release . “She’s confident in her shot, plays tenacious defense and is an unselfish, high-energy teammate. We’re eager to watch Kate develop within our system.”  As part of the new collective bargaining agreement, WNBA teams are now allowed to carry two so-called developmental roster spots for athletes with 0-3 years of service in the league. These positions act as a sort of in-house training pipeline/depth enhancement opportunity that exists outside of the salary cap.…