added CI

.gitlab-ci.yml

+stages:
+- build  # section name of the CI pipeline
+
+build_job:
+  stage: build   # section where to run the job
+  tags:
+    - git-run-ia2  # who is running the job
+  script:
+    - echo "Building the application..."
+    - python -m py_compile program.py
+    - echo "Building complete."