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
constants/float32/ln-half	$\color{green}55/55$ $\color{green}+100.00\%$	$\color{green}1/1$ $\color{green}+100.00\%$	$\color{green}0/0$ $\color{green}+100.00\%$	$\color{green}55/55$ $\color{green}+100.00\%$

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