Autoupdates node in the image

Author: jaymoulin

Dockerfile

@@ -8,6 +8,6 @@ ARG VERSION=v1.0.1-canary.3
 LABEL maintainer="Jay MOULIN <https://jaymoulin.me/femtopixel/docker-eleventy> <https://twitter.com/MoulinJay>"
 LABEL version="${VERSION}"
 
-RUN npm add -g @11ty/eleventy
+RUN npm add -g npm @11ty/eleventy
 WORKDIR /app
 ENTRYPOINT ["eleventy"]