add destination relative path

export-notes.sh

@@ -11,6 +11,7 @@
 
 SOURCE_BASE="$HOME"
 NOTES_ROOT="notes/courses"
+DEST_REL=""
 SECTION_DIR=""
 SHARE_REL=""
 DEBUG=0
@@ -28,6 +29,8 @@ Options:
   --notes-root PATH      Path from base to notes root (default: notes/courses)
   --section-dir PATH     Relative path under notes root to export (default: current directory)
 
+  --dest-rel PATH        Relative path under the destination root to export
+  
   --share-rel PATH       Relative path (from section-dir) to a shared _share directory (e.g. ../_share)
                          If provided, its contents will be copied to the DEST/_share folder (as a sibling)