Fix the image format in the docs
Fix the image format in the docs

Signed-off-by: Meaglith Ma <d60080dfcb55ab544328ec09f989dd89adc10137@gmail.com>

victorwangyang/containerops,SixGodHuang/containerops,xiechuanj/containerops,MarxGo/containerops,MarxGo/containerops,viviXie/containerops,yongjingzheng/containerops,haiheipijuan/containerops,yongjingzheng/containerops,xiechuanj/containerops,SixGodHuang/containerops,yongjingzheng/containerops,viviXie/containerops,SixGodHuang/containerops,haiheipijuan/containerops,viviXie/containerops,haiheipijuan/containerops,MarxGo/containerops,SixGodHuang/containerops,haiheipijuan/containerops,victorwangyang/containerops,SixGodHuang/containerops,haiheipijuan/containerops,MarxGo/containerops,MarxGo/containerops,xiechuanj/containerops,xiechuanj/containerops,xcheng1982/containerops,xiechuanj/containerops,MarxGo/containerops,xiechuanj/containerops,xcheng1982/containerops,viviXie/containerops,xcheng1982/containerops,SixGodHuang/containerops,yongjingzheng/containerops,victorwangyang/containerops,xcheng1982/containerops,viviXie/containerops,victorwangyang/containerops,haiheipijuan/containerops,xcheng1982/containerops,viviXie/containerops,yongjingzheng/containerops,yongjingzheng/containerops,victorwangyang/containerops,xcheng1982/containerops