revert 4245d4cb97b0823b35ee1fc2891d045657f968f1

revert refactor public images documentation

Reviewed-by: Gode, Sebastian <sebastian.gode@t-systems.com>
Co-authored-by: tischrei <tino.schreiber@t-systems.com>
Co-committed-by: tischrei <tino.schreiber@t-systems.com>

otc_metadata/data/services.yaml

@@ -651,7 +651,7 @@ documents:
   - html_location: docs/ims/public-images
     link: /image-management-service/public-images/
     pdf_name: ims-public-images
-    rst_location: public-images/source
+    rst_location: doc/public-images/source
     service_type: ims
     title: Public Image Introduction
     type: public-images