diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 49da70499fe51970d096b57550a045dbe79fd77f..8ec44adad11daf5780114ac632a5f492d29aa08b 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -5,7 +5,17 @@ stages:
 
 # ---------------------------------------------------------------------------------------------------------------------------------
 # Stage "build"
-# Cache keeps directory for other jobs
+# SHORT SYNTAX EXPLANATIONS FOR THE JOB, FOR DETAILS VISIT:    ===> https://docs.gitlab.com/ce/ci/yaml/   <===
+# "stage:"         makes the job part of a stage defined above
+# "tags:"          selects the runner
+# "only:"          restricts the execution of the job to a git branch or tag
+# "before_script:" shell commands to be executed before the main script. 
+# "script:"        shell commands for the test. If a shell command exits with >0, the job is marked as "failed", else as "passed".
+#                  commands after a failing one are not executed anymore!
+# "after_script:"  shell commands after passed OR failed script. Careful, the current directory is always the root of the repo!
+# "artifacts:"     keep data from the job which is uploaded to gitlab.com. You really should set a duration to expiration.
+#                  "when:" can be either on_failure, on_success or always
+# "cache:"         keeps directories given in paths:  for other jobs
 # ---------------------------------------------------------------------------------------------------------------------------------
 build_debug:
   stage: build 
@@ -15,6 +25,8 @@ build_debug:
     - rm -rf build_debug || true
     - mkdir -p build_debug
     - cd ode-1 ; make clean; make DEBUG=yes 2>stdout.make 1>stderr.make
+  after_script: 
+    - cd ode-1 ;
     - cat stdout.make
     - cp rk_solve ../build_debug/. 
     - cp std*.make ../build_debug/. 
@@ -32,6 +44,8 @@ build_release:
     - rm -rf build_release || true
     - mkdir -p build_release
     - cd ode-1 ; make clean; make DEBUG=no 2>stdout.make 1>stderr.make
+  after_script: 
+    - cd ode-1 ;
     - cat stdout.make
     - cp rk_solve ../build_release/. 
     - cp std*.make ../build_release/.