docs: fixed shell substitutions in local setup guide

[dmoonfire]

Fixed a shell substitution in the local setup guide where $1 was being resolved instead of being put into the Husky hook.

Description

Changed the " in the example to ' to avoid shell substitutions.

Motivation and Context

As reported in #2511, the $1 was not being put into the hook properly (as the second example gave). This brings the two in line with each other.

Usage examples

This is for setting up Husky with the package.

$ yarn husky add .husky/commit-msg 'yarn commitlint --edit $1'
$ cat .husky/commit-msg
#!/bin/sh
. "$(dirname "$0")/_/husky.sh"

yarn commitlint --edit $1
$

How Has This Been Tested?

Manually tested it in Bash.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

I didn't update tests since this was documentation.

[escapedcat]

Thanks!