Update installing.md

[mujuonly]

MySQL info missing in doc for the command - wp --info

[mujuonly]

In my environment the details are like

OS: Darwin 23.3.0 Darwin Kernel Version 23.3.0: Wed Dec 20 21:31:00 PST 2023; root:xnu-10002.81.5~7/RELEASE_ARM64_T6020 arm64
Shell: /bin/zsh
PHP binary: /opt/homebrew/Cellar/php/8.3.3_1/bin/php
PHP version: 8.3.3
php.ini used: /opt/homebrew/etc/php/8.3/php.ini
MySQL binary: /opt/homebrew/bin/mysql
MySQL version: mysql Ver 8.3.0 for macos14.2 on arm64 (Homebrew)
SQL modes:
WP-CLI root dir: phar://wp-cli.phar/vendor/wp-cli/wp-cli
WP-CLI vendor dir: phar://wp-cli.phar/vendor
WP_CLI phar path: /Applications/XAMPP/xamppfiles/htdocs/wpclictest