docs: fix typos and missing word in tutorial (#20764)
docs: fix typos and missing word in tutorial (#20764)

PR Close #20764

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