docs: update related packages sections

[stdlib-bot]

This PR

• updates the related packages section of READMEs to include links to related packages.

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
ndarray/vector/complex64	$\\color{green}209/209$ $\\color{green}+100.00\\%$	$\\color{green}2/2$ $\\color{green}+100.00\\%$	$\\color{green}0/0$ $\\color{green}+100.00\\%$	$\\color{green}209/209$ $\\color{green}+100.00\\%$
ndarray/vector/ctor	$\\color{red}1077/1080$ $\\color{green}+99.72\\%$	$\\color{red}183/184$ $\\color{green}+99.46\\%$	$\\color{green}7/7$ $\\color{green}+100.00\\%$	$\\color{red}1077/1080$ $\\color{green}+99.72\\%$
random/base/gumbel	$\\color{green}493/493$ $\\color{green}+100.00\\%$	$\\color{green}55/55$ $\\color{green}+100.00\\%$	$\\color{green}12/12$ $\\color{green}+100.00\\%$	$\\color{green}493/493$ $\\color{green}+100.00\\%$

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

[stdlib-bot]

PR Commit Message

docs: update related packages sections

PR-URL: https://github.com/stdlib-js/stdlib/pull/13276

Reviewed-by: Philipp Burckhardt <pburckhardt@outlook.com>

Please review the above commit message and make any necessary adjustments.