Hugo v0.81.0

also force AMD64 base image (ran into problems with Docker on Apple Silicon since there's no ARM Linux version of Hugo)

Dockerfile

@@ -1,9 +1,9 @@
 # Hugo doesn't require Go to run, *except* if you're using Hugo Modules. It's
 # much easier to install Node on the Go base image than vice-versa.
-FROM golang:1.15-alpine
+FROM amd64/golang:1.16-alpine
 
 # the following version can be overridden at image build time with --build-arg
-ARG HUGO_VERSION=0.80.0
+ARG HUGO_VERSION=0.81.0
 # remove/comment the following line completely to build with vanilla Hugo:
 ARG HUGO_EXTENDED=1