docs: update Markdown stdlib package URLs

[stdlib-bot]

This PR

• updates Markdown files by resolving stdlib package identifiers to GitHub repository URLs.

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
stats/strided/ztest2	$\color{green}297/297$ $\color{green}+100.00\%$	$\color{green}21/21$ $\color{green}+100.00\%$	$\color{green}2/2$ $\color{green}+100.00\%$	$\color{green}297/297$ $\color{green}+100.00\%$

The above coverage report was generated for the changes in this PR.