create doxygen doc for main?

.gitlab-ci.yml

 stages:
   - deploy
 
+cache:
+  paths:
+    - public
+
 pages:
   stage: deploy
   image:
@@ -13,18 +17,6 @@ pages:
     - cd studip
     - doxygen Doxyfile
     - mv doc/html ../public/main
-    - git checkout 5.3
-    - doxygen Doxyfile
-    - mv doc/html ../public/5.3
-    - git checkout 5.2
-    - doxygen Doxyfile
-    - mv doc/html ../public/5.2
-    - git checkout 5.1
-    - doxygen Doxyfile
-    - mv doc/html ../public/5.1
-    - git checkout 5.0
-    - doxygen Doxyfile
-    - mv doc/html ../public/5.0
   artifacts:
     paths:
       - public