added add-jmanns.txt to contributors
added add-jmanns.txt to contributors

rkaranam/patchwork,tanmiiti/patchwork,apound01/patchwork,Soumya08pragya/patchwork,cynthialac/patchwork,Misatoteen/hello-world,SaraHal/patchwork,laurenamy/patchwork,Frankyx93/patchwork,taichunmin/patchwork,carufenon/patchwork,joysjsj/patchwork,ruicorte/patchwork,cadazab/patchwork,raju249/patchwork,elzbeth/patchwork,diegobust4545/patchwork,mnking/patchwork,TheSpitefulOctopus/patchwork,gtbay707/patchwork,colpac64/patchwork,juliozm20/patchwork,SarahSexton/patchwork