Attempt to improve readability of error codes sections

[hughns]

The idea for this came from #2315 (comment)

If this looks like a sensible direction then I can tidy up the PR for full review.

Before vs After:

Pull Request Checklist

• Pull request includes a changelog file
• Pull request includes a sign off
• Pull request is classified as 'other changes'

Preview: https://pr2323--matrix-spec-previews.netlify.app

[richvdh]

Looks great, thanks!

[richvdh]

If this looks like a sensible direction then I can tidy up the PR for full review.

Oh, I missed this bit. It looked fine?

[hughns]

If this looks like a sensible direction then I can tidy up the PR for full review.

Oh, I missed this bit. It looked fine?

I think I wanted to check if the indentation style was important. In the other places where definition lists are used it has multiple spaces after the ::

matrix-spec/content/client-server-api/modules/push.md

Lines 53 to 86 in 2baca03

	Push Provider
	: A push provider is a service managed by the device vendor which can send
	notifications directly to the device. Google Cloud Messaging (GCM) and
	Apple Push Notification Service (APNS) are two examples of push
	providers.
	Push Gateway
	: A push gateway is a server that receives HTTP event notifications from
	homeservers and passes them on to a different protocol such as APNS for
	iOS devices or GCM for Android devices. Clients inform the homeserver
	which Push Gateway to send notifications to when it sets up a Pusher.
	Pusher
	: A pusher is a worker on the homeserver that manages the sending of HTTP
	notifications for a user. A user can have multiple pushers: one per
	device.
	Push Rule
	: A push rule is a single rule that states under what *conditions* an
	event should be passed onto a push gateway and *how* the notification
	should be presented. These rules are stored on the user's homeserver.
	They are manually configured by the user, who can create and view them
	via the Client/Server API.
	Push Ruleset
	: A push ruleset *scopes a set of rules according to some criteria*. For
	example, some rules may only be applied for messages from a particular
	sender, a particular room, or by default. The push ruleset contains the
	entire set of rules.

If the is tidying to do then can definitely happen in another PR 👍