New section: Tools for standard development

[duncandewhurst]

I think we should add a section listing the tools that we use for standard development. This could go under a 'resources and tools' section along with the component and pattern libraries.

Starter list, grouped by stage/theme:

• Research
  • Airtable
• Schema development
  • Compile to JSON Schema
  • JSON Schema Auditor
  • OCDS Kit (schema-report, schema-strict, set-closed-codelist-schema)
• Testing
  • JSCC
• Documentation:
  • Sphinx base
  • Sphinx extensions
  • MyST Parser
  • Sphinx Design
  • OCDS Kit (mapping-template)
• Conversion:
  • Flatten Tool
  • Flatterer
  • Spreadsheet Template Generator