Documentation restructuring

[estruyf]

As more and more people are adopting Front Matter, it is time to validate if the current documentation structure is still applicable and where it can be improved.

Here is a proposal of splitting the documentation in new sections:

• Welcome / intro
• Getting started
  • Installation (pointers to different SSGs & Frameworks)
  • Configuration
  • Project structure (.frontmatter, frontmatter.json)
• Editorial configuration
  • Our defaults
  • Content Types
  • Fields
    • Define each field type
  • Create your own content type
• Content creation
  • Dashboard
  • Editor panel
  • Preview
• Media management
• Advanced / extensibility
  • Commands
  • Custom commands
• Static site generators
• Troubleshooting
• Settings and configuration
  • Local / Team
  • Migration
  • Overview of all settings
  • Deprecated / removed settings

[estruyf]

Content types section has been changed to Content Creation which is split in content types, fields, placeholders, and additional configuration.