adding drone-hugo dockerfile for CI/CD

drone-hugo/Dockerfile

@@ -0,0 +1,7 @@
+# GitHub:       https://github.com/gohugoio
+# Twitter:      https://twitter.com/gohugoio
+# Website:      https://gohugo.io/
+
+FROM golang:latest AS build
+
+RUN go install -tags extended github.com/gohugoio/hugo@latest

drone-hugo/build.sh

@@ -0,0 +1,4 @@
+#! /bin/bash
+
+docker build -t code.ndumas.com/ndumas/drone-hugo:latest .
+docker push code.ndumas.com/ndumas/drone-hugo:latest