Change html_link for PFS and Perms Guide

Reviewed-by: Hasko, Vladimir <vladimir.hasko@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

@@ -688,7 +688,7 @@ documents:
     title: Tool Guide (OBS Browser)
     type: tool-guide
   - hc_location: pfs/obs
-    html_location: docs/obs/parallel-file-system
+    html_location: docs/obs/pfs
     link: /object-storage-service/parallel-file-system/
     pdf_name: obs-pfs
     rst_location: doc/parallel-file-system/source
@@ -696,7 +696,7 @@ documents:
     title: Parallel File System (PFS)
     type: parallel-file-system
   - environment: internal
-    html_location: docs/obs/permissions-configuration-guide
+    html_location: docs/obs/perms-cfg
     link: /object-storage-service/permissions-configuration-guide/
     pdf_name: obs-perms-cfg
     rst_location: doc/permissions-configuration-guide/source