Added syntax highlighting for example in README
Added syntax highlighting for example in README

kosakasakas/hugo-creative-theme,weianwang/hugo-creative-theme,monosmou/hugo-sailingcrew-theme,weianwang/hugo-creative-theme,digitalcraftsman/hugo-creative-theme,digitalcraftsman/hugo-creative-theme,bep/hugo-creative-theme,kosakasakas/hugo-creative-theme,bep/hugo-creative-theme,monosmou/hugo-sailingcrew-theme