doc: Add missing PinYin keyboard layouts
doc: Add missing PinYin keyboard layouts

cwlin/libchewing,czchen/libchewing,yan12125/libchewing,Chocobo1/libchewing,chewing/libchewing,dimotsai/libchewing,Chocobo1/libchewing,cwlin/libchewing,yan12125/libchewing,ShengYenPeng/libchewing,Chocobo1/libchewing,cwlin/libchewing,chewing/libchewing,czchen/libchewing,kito-cheng/libchewing,PingNote/libchewing,yan12125/libchewing,ShengYenPeng/libchewing,dimotsai/libchewing,mangokingTW/libchewing,robert501128/libchewing,Chocobo1/libchewing,bbyykk/libtaigi,czchen/libchewing,dimotsai/libchewing,bbyykk/libtaigi,mangokingTW/libchewing,hiunnhue/libchewing,robert501128/libchewing,simonfork/libchewing,cwlin/libchewing,mangokingTW/libchewing,PingNote/libchewing,simonfork/libchewing,hiunnhue/libchewing,hiunnhue/libchewing,bbyykk/libtaigi,Chocobo1/libchewing,simonfork/libchewing,mangokingTW/libchewing,PeterDaveHello/libchewing,ShengYenPeng/libchewing,dimotsai/libchewing,chewing/libchewing,kito-cheng/libchewing,czchen/libchewing,bbyykk/libtaigi,simonfork/libchewing,kito-cheng/libchewing,kito-cheng/libchewing,cwlin/libchewing,robert501128/libchewing,PingNote/libchewing,robert501128/libchewing,PeterDaveHello/libchewing,bbyykk/libtaigi,PeterDaveHello/libchewing,yan12125/libchewing,PeterDaveHello/libchewing,hiunnhue/libchewing,PingNote/libchewing,ShengYenPeng/libchewing,chewing/libchewing,hiunnhue/libchewing