Block Attributes and Editable Field

Go through the following documentation and examples.

• Introducing Attributes and Editable Fields
  • Attributes
• RichText Reference
• Examples
  • https://github.com/WordPress/gutenberg-examples/tree/trunk/blocks-jsx/03-editable-esnext
  • https://github.com/chandrapatel/learn-gutenberg#attributes-and-editable-field