Update README.md

Author: ehanson8

README.md

@@ -2,7 +2,7 @@
 Scripts for manipulating MARC-related data
 
 #### [extractCompleteNamesSubjectsFromCSV](extractCompleteNamesSubjectsFromCSV.py)
-Categorizes headings depending on the MARC tags used (e.g. 110,610, 710 as corporate names and 100, 600, 700 as personal names) and produces corresponding CSV files.
+Categorizes headings depending on the MARC tags used (e.g. 110, 610, 710 as corporate names and 100, 600, 700 as personal names) and produces corresponding CSV files.
 
 #### [extractMarcFields](extractMarcFields.py)
 Produces a CSV of selected MARC fields from a JSON file of MARC data produced by [Traject](https://github.com/traject/traject).