refactoring these steps

.drone.yml

@@ -6,6 +6,16 @@ steps:
   image: alpine/git
   commands:
   - git submodule update --init --recursive
+- name: sanitize-posts
+  image: alpine
+  commands:
+  - echo "NOT IMPLEMENTED"
+  - exit 0
+- name: gather-media
+  image: alpine
+  commands:
+  - echo "NOT IMPLEMENTED"
+  - exit 0
 - name: build
   image: code.ndumas.com/ndumas/drone-hugo
   commands: