Update aliases documentation with 'Brunch and learn' feedback

[jdbaldry]

• Update advice to say that you must add an alias when a page is move.
• Update advice to say that you should add a comment explaining relative aliases.
• Visually restructure examples for improved readability.

Signed-off-by: Jack Baldry [email protected]

[github-actions]

Overall readability score: 60.72 (🟢 +0.01)

File	Readability
index.md	68.44 (🟢 +0.4)

View detailed metrics

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

File	Readability	FRE	GF	ARI	CLI	DCRS
index.md	68.44	48.7	8.81	9.8	10.84	6.74
	🟢 +0.4	🟢 +0.2	🔴 -0.2	🟢 +0.5	🟢 +0.4	🔴 -0.18

Averages:

	Readability	FRE	GF	ARI	CLI	DCRS
Average	60.72	47.56	9.57	11.64	12.07	7.31
	🟢 +0.01	🟢 +0	🟢 +0	🟢 +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

[jdbaldry]

Thanks for taking a look. This is a difficult topic and I appreciate you being willing to get into the weeds again.