Chore: Standardize Formatting in Documentation

[m-brando]

Description

Some CLI examples and configuration instructions in docs (docs.claudie.io) instructions can be confusing for new users. There’s inconsistency in how placeholder values are represented — sometimes using capital letters, sometimes angle brackets (<>), and other times just plain strings.

Exit criteria

• [ ] Adopt a consistent convention for placeholders (e.g., always use ).
• [ ] Add legend in the docs