docs: omnibus cleanup

Includes harmonizing the display of options and arguments, standardising
terminology, using the envvar directive more broadly, adding help options to all
commands that support them, simplifying some language, and tidying up multiple
formatting issues.

string documentation is not changed.
This commit is contained in:
David Adam
2022-03-12 00:18:41 +08:00
parent e23e52a8e9
commit 3a23fdf359
66 changed files with 278 additions and 143 deletions

View File

@@ -21,6 +21,9 @@ The following options are available:
**-i** or **--index**
Print the index (number of the element in the set) of the first matching element.
**-h** or **--help**
Displays help about using this command.
Note that ``contains`` interprets all arguments starting with a **-** as an option to ``contains``, until an **--** argument is reached.
See the examples below.