Remove nc from descriptions of OPS files

[dwhswenson]

Files can also be .db. Change recommended as an aside in openpathsampling/mini-tutorials#5 (comment).

[codecov]

Codecov Report

Merging #51 (4a8e50d) into main (8e71c33) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##              main       #51   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           29        29           
  Lines         1204      1204           
=========================================
  Hits          1204      1204           

Impacted Files	Coverage Δ
paths_cli/commands/contents.py	100.00% <ø> (ø)
paths_cli/parameters.py	100.00% <ø> (ø)

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[dwhswenson]

This is ready for review and comment. I will leave it open for at least 24 hours, merging no earlier than Sat 04 Sep 04:00 GMT (00:00 my local).

[sroet]

I am a bit unsure about the wording (it could also be used on an "input" file), but feel free to ignore. This LGTM otherwise

[dwhswenson]

Thanks -- I like the suggestion of storage file. I had the same concerns, and had considered database file (but that's too close the to the .db suffix, making it sound SimStore-specific) and just file (but with the YAML/JSON/TOML input files that will be possible after #43, there's more than one kind of "OPS file" -- and the YAML/JSON/TOML files are definitely better thought of as "input," so don't want to use the word "input file"!)

"Storage file" finds the right balance. Going with that.