docs: Add multichain Safe deployments guide

[DaniSomoza]

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https://safe_deployment_guide_v2--docs.review.5afe.dev

[github-actions]

Overall readability score: 31.14 (🔴 -0.03)

File	Readability
protocol-kit.mdx	32.96 (🟢 +0)
multichain-safe-deployment.mdx	30.8 (-)
safe-deployment.mdx	24.01 (-)

View detailed metrics

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

File	Readability	FRE	GF	ARI	CLI	DCRS
protocol-kit.mdx	32.96	37.5	15.08	15	15.08	9.65
	🟢 +0	🟢 +0	🟢 +0	🟢 +0	🟢 +0	🟢 +0
multichain-safe-deployment.mdx	30.8	39.5	15.9	21.6	13.24	7.81
	-	-	-	-	-	-
safe-deployment.mdx	24.01	30.13	17.01	22	13.76	8.44
	-	-	-	-	-	-

Averages:

	Readability	FRE	GF	ARI	CLI	DCRS
Average	31.14	26.6	13.49	18.02	15.9	8.77
	🔴 -0.03	🟢 +0.07	🔴 -0.03	🔴 -0.03	🟢 +0.02	🟢 +0.01

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