add gitlab CI

.gitlab-ci.yml

@@ -0,0 +1,17 @@
+# This file is a template, and might need editing before it works on your project.
+# Select image from https://hub.docker.com/_/php/
+image: chialab/php:7.3
+
+# Select what we should cache between builds
+cache:
+  paths:
+  - vendor/
+
+before_script:
+  - composer install
+  - php -S localhost:9000 -t public &
+
+test:
+  script:
+  - php update.php
+  - php test.php