shell excutor demo

gitlab/gitlab-runner/docker-compose.yml

+version: "3"
+services:
+  runner:
+    image: gitlab/gitlab-runner
+    restart: always
+    volumes: 
+     -  ./gitlab-runner-config:/etc/gitlab-runner 
+     -  /var/run/docker.sock:/var/run/docker.sock
\ No newline at end of file

readme

+#ci/cd gitlab
+access vao runner container
+chay
+gitlab-runner rigister  //de tao runner
+next: please enter the gitlab-ci coordinator URL (e.g. https://gitlab.com/): // chon repo cho runner
+...
+next: Please enter the executor: ... //chon executor phu hop voi cong viec cua gitlab-ci.yml file