Update getting-started-overview.md
Update getting-started-overview.md

Remove v1 signup info
lmcornejo/PublicKB,BobStolzberg/PublicKB,mfar78/PublicKB,robertlesieur/PublicKB,SeanRobb/PublicKB,mclose/PublicKB,duvander/PublicKB,bburge/PublicKB,broneal/PublicKB,StephanieWong/PublicKB,jmalmadclc/PublicKB,BryGittyUp/PublicKB,eschubert/PublicKB,robcaldwell/PublicKB,justinwithington/PublicKB,ian-plosker/PublicKB,appfog/PublicKB,DLM1/PublicKB,mark-turpin/PublicKB,maxim-clc/PublicKB,leporaj/PublicKB,csterwa/PublicKB,adamd/PublicKB,anthonyvetter/PublicKB,jwebs1/PublicKB,ack/PublicKB,jtowns3/PublicKB,jruckle/PublicKB,keithresar/clc_public_kb,jwcolbert/PublicKB,thenley/PublicKB,ryanbrockman/PublicKB,daveshac/PublicKB