fix: remove deprecated references to Jenkins

chapters/ci-cd.md

@@ -27,12 +27,12 @@ The generic links for all projects are:
 - Link: `https://gitlab.gwdg.de/%{project_path}/commits/%{default_branch}`
 - Badge image URL: `https://gitlab.gwdg.de/%{project_path}/badges/%{default_branch}/coverage.svg?style=flat-square`
 
-The workflows we are currently using in Jenkins and the GitLab Runner are:
+The workflows we are currently using in the GitLab Runner are:
 
 - Code building
 - Testing
-- Code analyzer (Sonar)
-- Packaging (JAR, WAR, DEB, XAR)
+- Code analyzer
+- Packaging (JAR, WAR, DEB, XAR, Docker Image)
 - Distribution (Nexus, APTLY repo, eXist repo)
 - Release Management (via GitLab Environments and gitflow)
 
@@ -45,26 +45,6 @@ We RECOMMEND to [use GitLab for CI/CD](https://docs.gitlab.com/ee/ci/quick_start
 There is a [full and documented example](https://gitlab.gwdg.de/SADE/SADE/blob/develop/.gitlab-ci.yml) of how the
 GitLab Runner is used in SADE.
 
-### Sample Configuration of the Jenkins CI (Multibranch Pipelines)
-
-- On commit and push to a <https://projects.gwdg.de> gitolite repo (such as
-<https://projects.gwdg.de/projects/tg-crud/repository>), Jenkins on [ci.de.dariah.eu](https://ci.de.dariah.eu/jenkins)
-is notified (see projects' gitolite configuration)
-
-- Jenkins then checks out and builds the configured branches (see projects' Jenkins multibranch pipeline
-configuration such as <https://ci.de.dariah.eu/jenkins/job/DARIAH-DE-CRUD-Services>.
-
-- Stage *Preparation*: Prepare things
-
-- Stage *Build*: Build, JAR, WAR, and DEB packages from source code, deploy JAR and WAR packages to the [Nexus
-repo](https://nexus.gwdg.de). For further information on Nexus cf. the [CI server
-documentation](https://wiki.de.dariah.eu/display/FEAD/ci.de.dariah.eu). Jenkins is configured to deploy JARs and WARs
-via Maven and a Nexus deploy-account.
-
-- Stage *Publish*: Publish DEB packages to the [DARIAH-DE Aptly Repo](https://ci.de.dariah.eu/aptly). Jenkins uses
-a shared library of scripts and publishing is divided into four conditionals: TG version, DH version, SNAPSHOT version,
-or RELEASE version due to given version suffixes!
-
 ## Continuous Delivery and Continuous Deployment
 
 Continuous Delivery aims at minimizing the [gap between development and production](https://12factor.net/dev-prod-parity)