Use explicit homebrew Hugo install path in build script

build.sh

@@ -1,2 +1,2 @@
 #!/bin/bash
-hugo && find public -path "*.html" -type f -exec tidy --quiet yes --drop-empty-elements no --hide-comments yes -o {} {} \;
+/home/linuxbrew/.linuxbrew/bin/hugo && find public -path "*.html" -type f -exec tidy --quiet yes --drop-empty-elements no --hide-comments yes -o {} {} \;