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
array/base/ones4d	$\color{green}309/309$ $\color{green}+100.00\%$	$\color{green}13/13$ $\color{green}+100.00\%$	$\color{green}3/3$ $\color{green}+100.00\%$	$\color{green}309/309$ $\color{green}+100.00\%$
blas/ext/base/gapxsumpw	$\color{green}278/278$ $\color{green}+100.00\%$	$\color{green}28/28$ $\color{green}+100.00\%$	$\color{green}2/2$ $\color{green}+100.00\%$	$\color{green}278/278$ $\color{green}+100.00\%$
constants/float32/max-base10-exponent	$\color{green}48/48$ $\color{green}+100.00\%$	$\color{green}1/1$ $\color{green}+100.00\%$	$\color{green}0/0$ $\color{green}+100.00\%$	$\color{green}48/48$ $\color{green}+100.00\%$
constants/float32/min-base10-exponent-subnormal	$\color{green}50/50$ $\color{green}+100.00\%$	$\color{green}1/1$ $\color{green}+100.00\%$	$\color{green}0/0$ $\color{green}+100.00\%$	$\color{green}50/50$ $\color{green}+100.00\%$
ndarray/iter/subarrays	$\color{green}283/283$ $\color{green}+100.00\%$	$\color{green}33/33$ $\color{green}+100.00\%$	$\color{green}4/4$ $\color{green}+100.00\%$	$\color{green}283/283$ $\color{green}+100.00\%$

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