By David Singer and Prateesh Maheshwari Thursday, March 17 We are proud to announce our continued investment in Volta Labs, leading its $20M Series A funding round, with participation from Illumina co-founder John Stuelpnagel, Khosla Ventures, Casdin Capital, Anne Wojcicki (CEO of 23andme), Paul McEwan (co-founder of KAPA Biosystems &…