including child theme

hello,

I purchased a theme and i wanted to rename it so that if anyone is doing view source the project name is displayed and not the theme name.

so I renamed to e.g. buycars and deployed to /themes/buycars

the theme is working fine.

I now wanted to add child theme so I can add my custom code.

i created a folder in /themes/buycars-child

and added style.css

i included Template: buycars

and then @import url(“../buycars/style.css”);

then added a css example: .sub-description {color:red;}

then i went to wordpress admin and activated the child theme.

and it still doesnt work.

I tried to apply same steps to twentyfifteen theme (renaming it..etc) and it works.

any ideas? what else i need to change in the purchased theme?

thank you