Add hugo caching

Author: npentrel

netlify.toml

@@ -1,5 +1,14 @@
+[build]
+  publish = "public"
+
 [[plugins]]
-  package = "netlify-plugin-image-optim"
+  package = "netlify-plugin-hugo-cache-resources"
+
+	[plugins.inputs]
+	# If it should show more verbose logs (optional, default = true)
+	debug = true
+	# Relative path to source directory in case you use Hugo's "--s" option
+	srcdir = "public"
 
 [[plugins]]
   # https://github.com/philhawksworth/netlify-plugin-minify-html#readme