Update troubleshooting.md

[pj-simpson]

Updating to make some bullet points bold, as per @dcoplowe 's suggestion.

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
codat-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jul 15, 2025 9:50am

[github-actions]

Overall readability score: 58.04 (🟢 +0)

File	Readability
troubleshooting.md	67.56 (🟢 +0)

View detailed metrics

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

File	Readability	FRE	GF	ARI	CLI	DCRS
troubleshooting.md	67.56	64.71	10	8.7	8.81	8.59
	🟢 +0	🟢 +0	🟢 +0	🟢 +0	🟢 +0	🟢 +0

Averages:

	Readability	FRE	GF	ARI	CLI	DCRS
Average	58.04	48.71	10.34	11.55	12.09	7.82
	🟢 +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

[github-actions]

Link check results for preview deployment (https://codat-docs-git-pj-simpson-bold-list-codat.vercel.app):

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