- Added clearer structure by grouping the options into logical sections.
- Expanded the details for many of the options.
- Added Examples section to show how to use the various commands.
- Specifically highlighted that the contents of SOURCE_DIR may be lost
if a download method is also provided.
- Updated argument-matching regex to be more robust and account for the
varying leading spaces before keywords in the docs.
- Updated tests to account for slightly changed error messages.
Craig Scott