docs: remove empty line

[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
stats/base/smeanpn	$\color{green}380/380$ $\color{green}+100.00\%$	$\color{green}18/18$ $\color{green}+100.00\%$	$\color{green}4/4$ $\color{green}+100.00\%$	$\color{green}380/380$ $\color{green}+100.00\%$

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