Adds new page with 4 best practices

[Annamarie2019]

Creates a new page with these 4 best practices (Issue #491):

• use cidv1 for future-proof addressing, and use in case-insensitive contexts
• enable pubsub if you need fast IPNS
• enable GC if your data churn is expected to be high
• use subdomain gateways or DNSLink when publishing apps

@johnnymatthews : How do I get the new page into the directory? I'm thinking it should go into How-tos > Customize your install, right before Troubleshooting.

[johnnymatthews]

I've added the sidebar stuff so this new page now shows up!

Do you think the title of this page is a bit too long though? Is there anyway we can shorten it a bit?

[lidel]

Thank you @Annamarie2019!

Added some clarifications around IPNS over pubsub

[Annamarie2019]

@lidel and @johnnymatthews It looks like it's in there the way I intended now. (@lidel I removed the link that seemed to refer to the previous version of the code we had.)

[lidel]

Looks good, but I think the pubsub section is still confusing, see my comment below.

ps. I fixed some links

[lidel]

This mixes two distinct concepts: "Pubsub" is a thing on its own, but here we talk about "IPNS over Pubsub" which will enable "Pubsub" and use it for faster IPNS record lookups.

In reality, people use this in production, so we should soften the warning and just ask people to be mindful when they opt-in.

Perhaps we could clarify this around these lines:

Suggested change

	Pubsub is one of the available options for configuring your IPFS node. It allows you to publish and subscribe to messages on a given topic. It can be a quick alternative to accessing data instead of setting up [IPNS](../concepts/ipns/#interplanetary-name-system-ipns). Pubsub is an experimental feature and it should not be used in a production environment. It is disabled by default.
	"[IPNS](../concepts/ipns/#interplanetary-name-system-ipns) over [Pubsub](../concepts/glossary/#pubsub)" is a way to accelerate publishing and resolution of IPNS records by asking both pubsub topic and DHT. It is an experimental feature and it should be used with care. It is disabled by default.

[Annamarie2019]

@johnnymatthews @lidel Since the last time you reviewed this, I changed one piece:

"## Enable pubsub for fast IPNS

As a standalone feature, pubsub is a way to publish and subscribe to messages. However, within ipns, you can use it to accelerate publishing and resolution of IPNS records. Within IPNS, pubsub calls both the topic and the DHT (Distributed Hash Table) key of the IPNS. Pubsub is an experimental feature, so use it with care. It's disabled by default."

I see Marcin's suggestion is still here above if you need a comparison. I need you to have my back when I change what I think is better English, but maybe I got rid of some accepted engineer-speak. Thanks.

[lidel]

LGTM!

(I removed one sentence that was bit technically incorrect/confusing + we already had it phrased in a better way in sentence after the shell example)

[filecorgi]

• Image optimization came back clean!
• Vuepress build was successful!