Add eslint as client side tool docs

[heliocodacy]

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[github-actions]

Overall readability score: 53.68 (🟢 +0.03)

File	Readability
running-eslint.md	61.03 (-)

View detailed metrics

🟢 - Shows an increase in readability
🔴 - Shows a decrease in readability

File	Readability	FRE	GF	ARI	CLI	DCRS
running-eslint.md	61.03	47.99	9.31	10.4	10.43	8.65
	-	-	-	-	-	-

Averages:

	Readability	FRE	GF	ARI	CLI	DCRS
Average	53.68	42.84	10.85	12.53	12.59	7.94
	🟢 +0.03	🟢 +0.02	🟢 +0.01	🟢 +0.01	🟢 +0.01	🟢 +0

View metric targets

Metric	Range	Ideal score
Flesch Reading Ease	100 (very easy read) to 0 (extremely difficult read)	60
Gunning Fog	6 (very easy read) to 17 (extremely difficult read)	8 or less
Auto. Read. Index	6 (very easy read) to 14 (extremely difficult read)	8 or less
Coleman Liau Index	6 (very easy read) to 17 (extremely difficult read)	8 or less
Dale-Chall Readability	4.9 (very easy read) to 9.9 (extremely difficult read)	6.9 or less

[Ngwerume]

Reviewed