{
  "en": { "name": "English", "versions": ["latest","6.2.x","5.3.x"] },
  "ja": { "name": "日本語", "versions": ["latest","6.2.x","5.3.x"] }
}

{
  "en": { "name": "English", "versions": ["latest","7.0.x","6.2.x","5.3.x"] },
  "ja": { "name": "日本語", "versions": ["latest","7.0.x","6.2.x","5.3.x"] }
}

Add 7.0.x to the doc version list
Add 7.0.x to the doc version list
