Changed yaml file.

.gitlab-ci.yml

+image: "python:3.5"
+
+before_script:
+  - python --version
+  - pip install hyperspy
+
+stages:
+  - test
+
 test:
-  script: python setup.py test
\ No newline at end of file
+  stage: test
+  script:
+    - python setup.py test