Add drone stuff

.drone.yml

@@ -0,0 +1,21 @@
+kind: pipeline
+name: default
+
+steps:
+- name: Download dart sass and hugo
+  image: alpine
+  commands:
+  - curl $(curl -s https://api.github.com/repos/sass/dart-sass/releases/latest | grep "browser_download_url.*dart-sass-.*-linux-x64.tar.gz" | cut -d : -f 2,3 | tr -d \") -LO
+  - curl $(curl -s https://api.github.com/repos/gohugoio/hugo/releases/latest | grep "browser_download_url.*hugo_.*_linux-amd64.tar.gz" | head --lines 1 | cut -d : -f 2,3 | tr -d \") -LO
+  - tar -xf dart-sass-*.tar.gz
+  - tar -xf hugo_*_linux-amd64.tar.gz --one-top-level
+- name: build and publish docker image
+  image: plugins/docker
+  pull: always
+  settings:
+    repo: askiiart/hugo
+    tags: latest
+    username:
+      from_secret: docker_username
+    password:
+      from_secret: docker_password

README.md

@@ -1,5 +1,7 @@
 # docker-hugo
 
+[![Build Status](https://drone.askiiart.net/api/badges/askiiart/docker-hugo/status.svg)](https://drone.askiiart.net/askiiart/docker-hugo)
+
 Hugo in a Docker container
 
 ## Running