update icon property description in node base file reference

[ayatnkw]

Related PR: n8n-io/n8n#9412

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[github-actions]

Overall readability score: 42.33 (🟢 +0)

File	Readability
node-base-files.md	75.72 (🔴 -0.06)

View detailed metrics

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

File	Readability	FRE	GF	ARI	CLI	DCRS
node-base-files.md	75.72	59.09	6.68	9.6	11.06	6.14
	🔴 -0.06	🔴 -0.31	🔴 -0.2	🟢 +0	🟢 +0.24	🟢 +0

Averages:

	Readability	FRE	GF	ARI	CLI	DCRS
Average	42.33	35.35	12.01	15.05	14.18	8.63
	🟢 +0	🟢 +0	🟢 +0	🟢 +0	🟢 +0	🟢 +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