add npm run build (noop with a helpful message)
add npm run build (noop with a helpful message)

Polymer/lit-html,Polymer/lit-html,PolymerLabs/lit-element-starter-js,Polymer/lit-html,Polymer/lit-html,lit/lit,lit/lit-element-starter-js,lit/lit,PolymerLabs/lit-element-starter-js,lit/lit,lit/lit-element-starter-js,lit/lit