Add documentation for adding doc string to annotated services (#2542)
Add documentation for adding doc string to annotated services (#2542)


line/armeria,trustin/armeria,kojilin/armeria,anuraaga/armeria,line/armeria,kojilin/armeria,minwoox/armeria,trustin/armeria,anuraaga/armeria,kojilin/armeria,kojilin/armeria,line/armeria,anuraaga/armeria,kojilin/armeria,minwoox/armeria,trustin/armeria,anuraaga/armeria,trustin/armeria,minwoox/armeria,anuraaga/armeria,minwoox/armeria,line/armeria,kojilin/armeria,minwoox/armeria,trustin/armeria,trustin/armeria,line/armeria,anuraaga/armeria,minwoox/armeria,line/armeria