add yml

.gitlab-ci.yml

+# 定义 stages
+stages:
+  - build
+  - test
+
+# 定义 job
+job1:
+  stage: test
+  script:
+    - echo "I am job1"
+    - echo "I am in test stage"
+
+# 定义 job
+job2:
+  stage: build
+  script:
+    - echo "I am job2"
+    - echo "I am in build stage"
\ No newline at end of file