Adding missing references to the new modules in the index page [skip ci]
@@ -183,6 +183,8 @@ These others are functional, but do not follow a common & consistent API:
open_exoplanet_catalogue/open_exoplanet_catalogue.rst
cosmosim/cosmosim.rst
hitran/hitran.rst
+ nasa_exoplanet_archive/nasa_exoplanet_archive.rst
+ exoplanet_orbit_database/exoplanet_orbit_database.rst
Catalog, Archive, and Other
===========================
