Update 04_style_manipulation.md
Update 04_style_manipulation.md

一处错别字
chowxiaojun/FEND_Note,jain0y/FEND_Note,Hellowor1d/FEND_Note,ljwrer/FEND_Note,taoyingsong/FEND_Note,suen427/FEND_Note,xiaojichao/FEND_Note,zhangaiping1/FEND_Note,Eriice/FEND_Note,rwang23/FEND_Note