fix

Author: MariusStorhaug

.github/workflows/hugo.yml

@@ -52,6 +52,7 @@ jobs:
         run: "[[ -f package-lock.json || -f npm-shrinkwrap.json ]] && npm ci || true"
       - name: Get theme
         run: |
+          npm install postcss-cli
           git submodule add https://github.com/google/docsy.git themes/github.com/google/docsy
           git submodule add https://github.com/FortAwesome/Font-Awesome.git themes/github.com/FortAwesome/Font-Awesome
           git submodule add https://github.com/twbs/bootstrap.git themes/github.com/twbs/bootstrap