[Doc] Replace wrong links to external numeral docs, instead use Kibana docs

[wylieconlon]

Many months ago we took an important step to remove numeral from Kibana, and since then the Kibana docs have diverged from the library we forked. Our docs are not actually linked from all the places they need to be, which is a bug: https://www.elastic.co/guide/en/kibana/current/numeral.html

Specifically, there are two main places that have technical barriers to linking to the correct docs:

• The Kibana "Advanced Settings", which can't use the docLinks service because of technical debt. Can we hardcode the link to elastic.co into the docs @gchaps?

• The number field formatter section of Index Pattern Management, which is directly linking to the wrong Github project. This is a bug.

[elasticmachine]

Pinging @elastic/kibana-docs (Team:Docs)

[elasticmachine]

Pinging @elastic/kibana-app-services (Team:AppServices)

[lcawl]

Can we hardcode the link to elastic.co into the docs

I think anything you can do to rely on ELASTIC_WEBSITE_URL and DOC_LINK_VERSION variables as is done in some other apps will save you from cleanup when we (hopefully) have significant changes to the URLs in the coming year. We'll have a lot of redirects nonetheless.

[wylieconlon]

@lcawl Because of the linked tech debt issue, that isn't an option here. The fix for that tech debt is not a high priority, so what are the options for working around this limitation?

[lcawl]

After further discussion with @wylieconlon I better understand that the goal here is to fix places in Kibana where we have outdated links to external websites (like numeraljs.com). If it's not possible to replace those with links to version-specific documentation, I agree that linking to "current" URLs is better than leaving them as-is.