{
  "db": {
    "type": "mysql",
    "host": "locahost",
    "port": 3306,
    "user": "root",
    "password": ""
  }
}
{
  "db": {
    "type": "mysql",
    "host": "localhost",
    "port": 3306,
    "user": "root",
    "password": ""
  }
}
Fix spelling issue of db default host.
Fix spelling issue of db default host.
