index.md: add helper and sort names by surnames

index.md

@@ -13,8 +13,8 @@ humandate: "Feb 12-13, 2024"    # human-readable dates for the workshop (e.g., "
 humantime: "9:00 am - 5:00 pm CEST (7:00 am - 3:00 pm UTC)"    # human-readable times for the workshop e.g., "9:00 am - 4:30 pm CEST (7:00 am - 2:30 pm UTC)"
 startdate: 2024-02-12      # machine-readable start date for the workshop in YYYY-MM-DD format like 2024-02-12
 enddate: 2024-02-13        # machine-readable end date for the workshop in YYYY-MM-DD format like 2024-02-13
-instructor: ["Federica Gazzelloni", "Giordano Lipari", "Paul Czechowski"] # boxed, comma-separated list of instructors' names as strings, like ["Kay McNulty", "Betty Jennings", "Betty Snyder"]
-helper: ["Federica Gazzelloni", "Giordano Lipari", "Paul Czechowski"]     # boxed, comma-separated list of helpers' names, like ["Marlyn Wescoff", "Fran Bilas", "Ruth Lichterman"]
+instructor: ["Paul Czechowski", "Federica Gazzelloni", "Giordano Lipari"] # boxed, comma-separated list of instructors' names as strings, like ["Kay McNulty", "Betty Jennings", "Betty Snyder"]
+helper: ["Paul Czechowski", "Federica Gazzelloni", "Giordano Lipari", "Markus Wust"]     # boxed, comma-separated list of helpers' names, like ["Marlyn Wescoff", "Fran Bilas", "Ruth Lichterman"]
 email: ["[email protected]"]    # boxed, comma-separated list of contact email addresses for the host, lead instructor, or whoever else is handling questions, like ["[email protected]", "[email protected]", "[email protected]"]
 collaborative_notes:  https://pad.carpentries.org/2024-02-12-helmholtz-online # optional: URL for the workshop collaborative notes, e.g. an Etherpad or Google Docs document (e.g., https://pad.carpentries.org/2015-01-01-euphoria)
 eventbrite:           # optional: alphanumeric key for Eventbrite registration, e.g., "1234567890AB" (if Eventbrite is being used)