Update readme.txt
Update readme.txt

Fixed typo
kaviarasukr/slider,F4-Group/slider,Porrapat/slider,giobero999/slider,kmtuhin/slider,kaviarasukr/slider,GerHobbelt/jquery-slider,lokesh-ideas2it/slider,vshekhar89/slider,ceg692001/slider,kartikjain/slider,masterweb121/slider,zyj1022/slider,spetpet/slider,hdushku/slider,dydjw9/slider,nhduong29/slider,kmtuhin/slider,aboutdata/slider,spetpet/slider,sanal0276/slider,aboutdata/slider,hdushku/slider,sanal0276/slider,masterweb121/slider,zyj1022/slider,F4-Group/slider,abhilashsajeev/slider,wangmb/slider,smrity-ku/slider,viniciusbenzi/slider,kartikjain/slider,smrity-ku/slider,nhduong29/slider,rlucia/slider,lokesh-ideas2it/slider,giobero999/slider,MH-Litu/slider,viniciusbenzi/slider,GerHobbelt/jquery-slider,wangmb/slider,ShefronYudy/slider,ceg692001/slider,abhilashsajeev/slider,rlucia/slider,vshekhar89/slider,MH-Litu/slider,shrutiarora89/slider,shrutiarora89/slider,Porrapat/slider,dydjw9/slider,ShefronYudy/slider