Added basic drone CI

.drone.yml

@@ -0,0 +1,14 @@
+---
+kind: pipeline
+type: docker
+name: mkdocs
+
+steps:
+- name: mkdocs
+  image: python:alpine
+  commands:
+  - pip install mkdocs
+  - mkdocs build
+  - mv site public
+
+...