A SharePoint Site Design which adds some document libraries, fields and navigation links.

COB_OpportunitySite.json

{
  "$schema": "schema.json",
  "actions": [
    {
      "verb": "createSPList",
      "listName": "CLIENT SHARED DOCUMENTS",
      "templateType": 101,
      "subactions": [
        {
          "verb": "SetDescription",
          "description": "Documents shared between Contoso and the client"
        },
        {
          "verb": "addSPField",
          "fieldType": "Text",
          "displayName": "Description",
          "isRequired": false,
          "addToDefaultView": true
        },
        {
          "verb": "createSiteColumnXml",
          "schemaXml": "<Field Type=\"Choice\" DisplayName=\"Document Status\" Required=\"FALSE\" Format=\"Dropdown\" StaticName=\"DocumentStatus\" Name=\"DocumentStatus\"><Default>In Progress</Default><CHOICES><CHOICE>In Progress</CHOICE><CHOICE>In Review</CHOICE><CHOICE>Completed</CHOICE></CHOICES></Field>"
        },
        {
          "verb": "addSPField",
          "fieldType": "User",
          "displayName": "Contact",
          "addToDefaultView": true,
          "isRequired": true
        }
      ]
    },
    {
      "verb": "createSPList",
      "listName": "Sales process documents",
      "templateType": 101,
      "subactions": [
        {
          "verb": "SetDescription",
          "description": "Sales process guidance"
        },
        {
          "verb": "addSPField",
          "fieldType": "Text",
          "displayName": "Description",
          "isRequired": false,
          "addToDefaultView": true
        }
      ]
    },
    {
      "verb": "addNavLink",
      "url": "/CLIENT SHARED DOCUMENTS",
      "displayName": "CLIENT SHARED",
      "isWebRelative": true
   },
   {
    "verb": "addNavLink",
    "url": "/Sales process documents",
    "displayName": "Sales process",
    "isWebRelative": true
   }
  ],
  "bindata": { },
  "version": 1
}