replace references to collection with catalog

[jukent]

Change Summary

Updating documentation to be more consistent in references to catalog vs collection.

Related issue number

• Closes Update Documentation to use new tutorial.py module for grabbing catalog URLs #456

Checklist

• Unit tests for the changes exist
• Tests pass on CI
• Documentation reflects the changes where applicable

[andersy005]

Thank you, @jukent 🚀

[jukent]

@andersy005 Should I do a similar effort to be very intentional about the term "collection" in the intake repository?

[andersy005]

Can you point me to these "collections" references in the intake repository?

[jukent]

In a few .rst files it is used mostly in the definition of things
https://github.com/intake/intake/search?q=collection

For example in deployment.rst mentions intake-esm and uses the following syntax:
col = intake.open_esm_metadatastore(collection_input_definition="GLADE-CMIP5")

[andersy005]

good catch! that page is definitely out-of-date and an update would be great.