Add description to CLI arguments

[blakef]

Summary:
Add details as this is discussed in the Turbo Native Modules documentation going out in 0.76:

Usage: combine-js-to-schema-cli.js <outfile> <file1> [<file2> ...]

Options:
      --help      Show help                                            [boolean]
      --version   Show version number                                  [boolean]
  -p, --platform  Platforms to generate schema for, this works on filenames:
                  <filename>[.<platform>].(js|tsx?)              [default: null]
  -e, --exclude   Regular expression to exclude files from schema generation
                                                                 [default: null]

Changelog:

[General][Added] Add cli --help details to combine-js-toschema-cli.js

Differential Revision: D64045337

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D64045337

[facebook-github-bot]

This pull request has been merged in e4814b0.

[react-native-bot]

This pull request was successfully merged by @blakef in e4814b0

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