Netlify CMS would streamline the rules update process for end users

[piers-sinclair]

@wicksipedia @calumjs @bradystroud
Changing rules is very difficult for non-technical end users because they are not familiar with GitHub workflows.

Using Netlify CMS and it's authoring configuration would fix this issue by standardising the edit workflow, providing a WYSIWYG editor and handling the pull request process for end users.

Netlify CMS also provides preview functionality. Which could help us with problems like #378

AB#60699

[piers-sinclair]

Just to add further weight to this task. Today @nviet123 merged in a rule change that had incorrectly formatted authors causing the builds to stop working. The frontmatter is quite inflexible so It is very easy for our end users to miss something or format things incorrectly causing builds to break or the site to stop working.

Netlify is crucial to stopping this issue.

[piers-sinclair]

This PBI became an investigation of the efficacy of implementing Netlify and we have broken it up into smaller PBIs.

PBIs: #458 #460 #461 #462 #463 #464 #465 #466 #467