docs: minor `DEVELOPER.md` clean-up (#33321)
docs: minor `DEVELOPER.md` clean-up (#33321)

PR Close #33321

mgechev/angular,gdi2290/angular,vikerman/angular,shairez/angular,angular-indonesia/angular,wKoza/angular,ocombe/angular,wKoza/angular,angular/angular,matsko/angular,manekinekko/angular,shairez/angular,manekinekko/angular,Brocco/angular,Toxicable/angular,Brocco/angular,vikerman/angular,manekinekko/angular,mhevery/angular,wKoza/angular,manekinekko/angular,mprobst/angular,vikerman/angular,mprobst/angular,JiaLiPassion/angular,gnomeontherun/angular,brandonroberts/angular,Brocco/angular,alxhub/angular,matsko/angular,snaptech/angular,gdi2290/angular,angular-indonesia/angular,snaptech/angular,Brocco/angular,gnomeontherun/angular,IdeaBlade/angular,gdi2290/angular,gdi2290/angular,wKoza/angular,vikerman/angular,ocombe/angular,brandonroberts/angular,vikerman/angular,IdeaBlade/angular,snaptech/angular,StephenFluin/angular,StephenFluin/angular,snaptech/angular,mhevery/angular,mhevery/angular,mgechev/angular,JiaLiPassion/angular,brandonroberts/angular,Toxicable/angular,filipesilva/angular,snaptech/angular,alxhub/angular,Toxicable/angular,vikerman/angular,angular-indonesia/angular,blesh/angular,blesh/angular,brandonroberts/angular,mgechev/angular,matsko/angular,alxhub/angular,filipesilva/angular,filipesilva/angular,ocombe/angular,alxhub/angular,brandonroberts/angular,manekinekko/angular,gnomeontherun/angular,Toxicable/angular,mhevery/angular,angular/angular,brandonroberts/angular,IdeaBlade/angular,mprobst/angular,Toxicable/angular,alxhub/angular,JiaLiPassion/angular,gdi2290/angular,gkalpak/angular,gdi2290/angular,gkalpak/angular,manekinekko/angular,StephenFluin/angular,mhevery/angular,Brocco/angular,shairez/angular,blesh/angular,ocombe/angular,shairez/angular,StephenFluin/angular,mprobst/angular,JiaLiPassion/angular,IdeaBlade/angular,Brocco/angular,ocombe/angular,gkalpak/angular,Toxicable/angular,filipesilva/angular,snaptech/angular,matsko/angular,blesh/angular,angular/angular,shairez/angular,filipesilva/angular,mgechev/angular,ocombe/angular,wKoza/angular,mgechev/angular,angular-indonesia/angular,mprobst/angular,matsko/angular,blesh/angular,IdeaBlade/angular,angular/angular,gkalpak/angular,wKoza/angular,StephenFluin/angular,mprobst/angular,gnomeontherun/angular,mhevery/angular