[Doc] Show how to install the phar by direct download #5274
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In my highly opinionated mind, the correct way to install a tool like Psalm is to download a binary. This would be obvious for any PHP developer if the tool (psalm) was written in GoLang or Ruby. Nobody would ever see a Ruby tool and think "I wish I can download this with composer".
Don't get me wrong, the
psalm/phar
package has its use cases, but it should not be the "standard way".Using
wget
to download a phar is the recommended way of PHPUnit.Since each release of psalm has the
psalm.phar
attached to it, we can use this special link. See Github docs.