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
blas/ext/base/dxsa	$\color{green}388/388$ $\color{green}+100.00%$	$\color{green}26/26$ $\color{green}+100.00%$	$\color{green}4/4$ $\color{green}+100.00%$	$\color{green}388/388$ $\color{green}+100.00%$

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