Update .gitlab-ci.yml

.gitlab-ci.yml

@@ -4,8 +4,18 @@ before_script:
   - pip install -r requirements.txt
 
 stages: 
+  - tests
   - deploy
 
+pagestests:   
+  stage: tests   
+  script:   
+    - mkdocs build --strict --verbose --site-dir test   
+  artifacts:     
+    paths:     
+      - test   
+  except:   
+    - development
 pages:
   stage: deploy
   script:
@@ -14,4 +24,4 @@ pages:
     paths:
     - public
   only:
-  - master
+  - development