Add '.drone.yml'

.drone.yml

@@ -0,0 +1,20 @@
+kind: pipeline
+name: default
+
+steps:
+- name: build
+  image: ubuntu
+  commands:
+  - cd docs/
+  - apt update && apt install -y git doxygen python3-pip
+  - git clone git://github.com/mosra/m.css
+  - pip3 install jinja2 Pygments
+  - ./m.css/documentation/doxygen.py ./Doxyfile-mcss
+  - mv ./html ../public
+
+- name: publish
+  image: itsblue.dev/plugins/codeberg-pages-deploy
+  settings:
+    folder: public
+    ssh_key:
+        from_secret: gitea-ssh-key