Continuous-Integration-and-Continuous-Deployment.md

@@ -62,7 +62,16 @@ See also [https://stackoverflow.com/a/57332478](https://stackoverflow.com/a/5733
 
 ## Stages
 
-### Overiew
+### Default
+
+```yaml
+default:
+  before_script:
+    - RESEARCH_ROOT=`pwd`; export RESEARCH_ROOT;
+```
+This job includes a [`before_script`](https://docs.gitlab.com/ee/ci/yaml/#before_script) for each job that does not have an own `before_script`. Here, a local environment variable is set. 
+
+### Overview
 
 Overall the pipeline features 5 Stages: