docs: Add Permissionless Quickstart

[germartinez]

Context

This PR:

• Adds the Permissionless quickstart guide

[github-actions]

Overall readability score: 57.88 (🔴 -0.39)

File	Readability
permissionless-detailed.mdx	33.68 (🟢 +0)
permissionless-quickstart.mdx	30.05 (-)

View detailed metrics

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

File	Readability	FRE	GF	ARI	CLI	DCRS
permissionless-detailed.mdx	33.68	35.41	14.51	20.3	14.45	7.5
	🟢 +0	🟢 +0	🟢 +0	🟢 +0	🟢 +0	🟢 +0
permissionless-quickstart.mdx	30.05	40.72	16.43	20.3	13.01	8.51
	-	-	-	-	-	-

Averages:

	Readability	FRE	GF	ARI	CLI	DCRS
Average	57.88	50.6	10.62	12.28	12.12	7.48
	🔴 -0.39	🔴 -0.14	🔴 -0.08	🔴 -0.11	🔴 -0.01	🔴 -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