Add instructions on how to enable curation tools for user pages and community pages

[khanspers]

Egon added code to enable users to customize their user page with some curation-specific features:

• Curation badges added to First authored pathways thumbnails
• New Curation tab

To-Do:

• Add instructions for users here: https://academy.wikipathways.org/stages/wp-custom-user-page/index.html
• Add instructions for Community admins here: https://www.wikipathways.org/help_communities.html

Instructions:

• On the user page, to enable curation features, add curationui: true.
• On the community page, add curationui: true and optionally specify which curation report to use for badges: curationrepo: lipidmaps-wp-curation