Fix typos in csv feeder docs (in manifest)

src/auto_archiver/modules/csv_feeder/__manifest__.py

@@ -30,7 +30,8 @@
     - Allows specifying the column number or name to extract URLs from.
     - Skips header rows if the first value is not a valid URL.
 
-    ### Setu N
+    ### Setup
-    - Input files should be formatted with one URL per line.
+    - Input files should be formatted with one URL per line, with or without a header row.
+    - If you have a header row, you can specify the column number or name to read URLs from using the 'column' config option.
     """
 }