docs: adding ngAtlanta 2019 (#27522)
docs: adding ngAtlanta 2019 (#27522)

PR Close #27522

StephenFluin/angular,gkalpak/angular,brandonroberts/angular,Brocco/angular,Toxicable/angular,gkalpak/angular,JiaLiPassion/angular,manekinekko/angular,StephenFluin/angular,vikerman/angular,mhevery/angular,StephenFluin/angular,hansl/angular,petebacondarwin/angular,juristr/angular,mlaval/angular,sarunint/angular,StephenFluin/angular,angular/angular,juristr/angular,juristr/angular,Brocco/angular,sarunint/angular,IdeaBlade/angular,filipesilva/angular,matsko/angular,IdeaBlade/angular,manekinekko/angular,angular/angular,snaptech/angular,wKoza/angular,blesh/angular,ValtoFrameworks/Angular-2,petebacondarwin/angular,alexeagle/angular,IgorMinar/angular,mlaval/angular,gdi2290/angular,juristr/angular,Toxicable/angular,Toxicable/angular,IgorMinar/angular,alxhub/angular,angular-indonesia/angular,mhevery/angular,snaptech/angular,JiaLiPassion/angular,alexeagle/angular,IdeaBlade/angular,mgechev/angular,ultrasonicsoft/angular,juristr/angular,filipesilva/angular,gnomeontherun/angular,StephenFluin/angular,gdi2290/angular,alxhub/angular,ultrasonicsoft/angular,ValtoFrameworks/Angular-2,sarunint/angular,alexeagle/angular,petebacondarwin/angular,sarunint/angular,jasonaden/angular,vikerman/angular,gdi2290/angular,filipesilva/angular,sarunint/angular,blesh/angular,vikerman/angular,alexeagle/angular,mhevery/angular,Toxicable/angular,ultrasonicsoft/angular,mlaval/angular,matsko/angular,manekinekko/angular,alexeagle/angular,vikerman/angular,mprobst/angular,manekinekko/angular,ocombe/angular,ultrasonicsoft/angular,brandonroberts/angular,angular-indonesia/angular,shairez/angular,snaptech/angular,brandonroberts/angular,petebacondarwin/angular,blesh/angular,gnomeontherun/angular,mgechev/angular,gdi2290/angular,angular/angular,wKoza/angular,jasonaden/angular,mlaval/angular,ocombe/angular,vikerman/angular,angular/angular,mlaval/angular,snaptech/angular,hansl/angular,jasonaden/angular,wKoza/angular,filipesilva/angular,hansl/angular,blesh/angular,manekinekko/angular,ocombe/angular,hansl/angular,petebacondarwin/angular,IgorMinar/angular,angular-indonesia/angular,snaptech/angular,alxhub/angular,Toxicable/angular,alxhub/angular,Toxicable/angular,JiaLiPassion/angular,matsko/angular,ValtoFrameworks/Angular-2,Brocco/angular,Brocco/angular,shairez/angular,vikerman/angular,gdi2290/angular,gnomeontherun/angular,juristr/angular,mgechev/angular,ultrasonicsoft/angular,alxhub/angular,mprobst/angular,IgorMinar/angular,hansl/angular,IdeaBlade/angular,mprobst/angular,ultrasonicsoft/angular,shairez/angular,Brocco/angular,mgechev/angular,gnomeontherun/angular,ocombe/angular,ValtoFrameworks/Angular-2,mhevery/angular,gdi2290/angular,IdeaBlade/angular,shairez/angular,ValtoFrameworks/Angular-2,mgechev/angular,brandonroberts/angular,Brocco/angular,IgorMinar/angular,mprobst/angular,jasonaden/angular,petebacondarwin/angular,gkalpak/angular,JiaLiPassion/angular,brandonroberts/angular,wKoza/angular,ocombe/angular,ocombe/angular,hansl/angular,filipesilva/angular,jasonaden/angular,angular-indonesia/angular,mprobst/angular,wKoza/angular,blesh/angular,manekinekko/angular,jasonaden/angular,gkalpak/angular,alexeagle/angular,mprobst/angular,mhevery/angular,snaptech/angular,matsko/angular,sarunint/angular,wKoza/angular,brandonroberts/angular,shairez/angular,IgorMinar/angular,mhevery/angular,matsko/angular