docs: refactor to use logEachMap in examples

[Lokeshranjan8]

Resolves #none.

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Coverage Report

Package	Statements	Branches	Functions	Lines
stats/base/dists/frechet/entropy	$\color{green}181/181$ $\color{green}+0.00%$	$\color{green}11/11$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{green}181/181$ $\color{green}+0.00%$
stats/base/dists/frechet/kurtosis	$\color{red}205/208$ $\color{green}+0.00%$	$\color{red}12/13$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{red}205/208$ $\color{green}+0.00%$
stats/base/dists/frechet/logcdf	$\color{green}324/324$ $\color{green}+0.00%$	$\color{green}27/27$ $\color{green}+0.00%$	$\color{green}4/4$ $\color{green}+0.00%$	$\color{green}324/324$ $\color{green}+0.00%$
stats/base/dists/frechet/logpdf	$\color{green}326/326$ $\color{green}+0.00%$	$\color{green}27/27$ $\color{green}+0.00%$	$\color{green}4/4$ $\color{green}+0.00%$	$\color{green}326/326$ $\color{green}+0.00%$
stats/base/dists/frechet/mean	$\color{green}193/193$ $\color{green}+0.00%$	$\color{green}13/13$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{green}193/193$ $\color{green}+0.00%$
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stats/base/dists/frechet/mode	$\color{green}190/190$ $\color{green}+0.00%$	$\color{green}11/11$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{green}190/190$ $\color{green}+0.00%$
stats/base/dists/frechet/quantile	$\color{green}300/300$ $\color{green}+0.00%$	$\color{green}27/27$ $\color{green}+0.00%$	$\color{green}4/4$ $\color{green}+0.00%$	$\color{green}300/300$ $\color{green}+0.00%$
stats/base/dists/frechet/skewness	$\color{green}202/202$ $\color{green}+0.00%$	$\color{green}13/13$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{green}202/202$ $\color{green}+0.00%$
stats/base/dists/frechet/stdev	$\color{green}198/198$ $\color{green}+0.00%$	$\color{green}13/13$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{green}198/198$ $\color{green}+0.00%$
stats/base/dists/frechet/variance	$\color{green}197/197$ $\color{green}+0.00%$	$\color{green}13/13$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{green}197/197$ $\color{green}+0.00%$

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