docs: rebuild on package.json change

netlify.toml

@@ -1,11 +1,7 @@
-# Global settings applied to the whole site.
-#
-# “base” is the directory to change to before starting build. If you set base:
-#        that is where we will look for package.json/.nvmrc/etc, not repo root!
-# “command” is your build command.
-# “publish” is the directory to publish (relative to the root of your repo).
+# https://docs.netlify.com/configure-builds/file-based-configuration
 
 [build]
   base    = "docs"
   command = "yarn generate"
   publish = "dist"
+  ignore  = "git diff --quiet HEAD^ HEAD . ../package.json"