Move documentation from Confluence to Git (#1)

adjust Pax Exam's repo URL

Author: oliverlietz

antora-playbook.yml

@@ -14,7 +14,7 @@ content:
     - url: .
       branches: [HEAD]
       start_path: documentation
-    - url: https://github.com/ops4j/org.ops4j.pax.exam2
+    - url: https://github.com/ops4j/org.ops4j.pax.exam
       branches: [v4.x]
       start_path: documentation
     - url: https://github.com/ops4j/org.ops4j.pax.swissbox