- Replace parentheses with commas for supplementary info
- Use commas instead of em-dashes for separators
- Update bullet points from - to * in some contexts
- Improve version extraction regex with fallback logic
This commit introduces a new `completion` command that provides shell
completion for bash, zsh, and fish.
The completion is implemented as a shell script in `bin/completion.sh`
and the main `mole` script has been updated to use it.
This approach was chosen to keep the completion logic in shell script,
as the `mole` command is primarily a set of shell scripts.
