Add instructions on how to make best use of zinit
Add instructions on how to make best use of zinit

This change adds instructions on how to load liquidprompt using `zinit
light`

Fixed incorrect link syntax

Format text to a line-max of 80 chars

Missed a line which went over the 80-char line limit

Recommend tracking the stable branch by default in the documentation

Co-authored-by: Mark Vander Stel <c876a8303cb4f7d671d7da2c34cb89316a45e896@gmail.com>

Remove async/lazy loading config, use stable branch

- Remove the async/lazy loading stuff from the ice modifier config
- zinit to checkout from the stable branch

Update docs/install.rst

Co-authored-by: Mark Vander Stel <c876a8303cb4f7d671d7da2c34cb89316a45e896@gmail.com>

milouse/liquidprompt,jaesivsm/liquidprompt,nojhan/liquidprompt,laurentbardin/liquidprompt,pkkolos/liquidprompt