message: Fixed correct use of an and a.
diff: {
  "dateClose": "2013-07-01",
  "dateOpen": "2005-10-07",
  - "description": "Google Reader was an RSS/Atom feed aggregator.",
  + "description": "Google Reader was a RSS/Atom feed aggregator.",
  "link": "https://en.wikipedia.org/wiki/Google_Reader",
  "name": "Google Reader"
  },
  {
  "dateClose": "2012-12-03",
  "dateOpen": "2008-08-05",
  - "description": "AdSense for Feeds was an RSS-based service for AdSense that allowed publishers to advertise on their RSS Feeds.",
  + "description": "AdSense for Feeds was a RSS-based service for AdSense that allowed publishers to advertise on their RSS Feeds.",
  "link": "https://adsenseforfeeds.blogspot.com/",
  "name": "AdSense for Feeds"
  },
  {
  "dateClose": "2018-10-11",
  "dateOpen": "2018-02-01",
  - "description": "Reply was an mobile app that let users insert Smart Replies (pre-defined replies) into conversations on messaging apps.",
  + "description": "Reply was a mobile app that let users insert Smart Replies (pre-defined replies) into conversations on messaging apps.",
  "link": "https://en.wikipedia.org/wiki/Reply_(Google)",
  "name": "Reply"
  },
  {
  "dateClose": "2011-07-20",
  "dateOpen": "2000-04-07",
  - "description": "Google Directory was a Internet website directory organized into 14 main categories that allowed users to explore the web.",
  + "description": "Google Directory was an Internet website directory organized into 14 main categories that allowed users to explore the web.",
  "link": "https://en.wikipedia.org/wiki/Google_Directory",
  "name": "Google Directory"
  },
  