Fix indent

README.md

@@ -51,12 +51,12 @@ audible:
   keep_series_reference_in_subtitle: true # set to false to remove subtitle if it contains the series name and the word book ex. "Book 1 in Great Series", "Great Series, Book 1"
   write_description_file: true # output desc.txt
   write_reader_file: true # output reader.txt
- chapter_matching_algorithms:
-     single_file
-     source_numbering
-     starting_numbers
-     natural_sort
-     chapter_levenshtein
+  chapter_matching_algorithms:
+     - single_file
+     - source_numbering
+     - starting_numbers
+     - natural_sort
+     - chapter_levenshtein
 
 copyartifacts:
     extensions: .yml # so that metadata.yml is copied, see below