message: Fixed typos and descriptions
diff: "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Devices/IotHubs/{resourceName}/certificates/{certificateName}": {
  "get": {
  "tags": [ "GET" ],
  - "summary": "Get the certificate list.",
  - "description": "Returns the complete list of certificates.",
  + "summary": "Get the certificate.",
  + "description": "Returns the certificate.",
  "operationId": "Certificate_Get",
  "parameters": [
  {
  {
  "name": "resourceName",
  "in": "path",
  - "description": "The name of the IoT hub to create or update.",
  + "description": "The name of the IoT hub.",
  "required": true,
  "type": "string"
  },
  {
  "name": "certificateName",
  "in":"path",
  - "description":"The name of the certificate",
  + "description":"The name of the certificate create or update.",
  "required":true,
  - "type":"string"
  + "type":"string",
  + "maxLength": 256
  },
  {
  "name": "certificateDescription",
  }
  },
  "200": {
  - "description": "If certificate already existed and update was successful, the operation returns HTTP status code of 201 (OK).",
  + "description": "If certificate already exist and update was successful, the operation returns HTTP status code of 201 (OK).",
  "schema": {
  "$ref": "#/definitions/CertificateDescription"
  }
  {
  "name": "resourceName",
  "in": "path",
  - "description": "The name of the IoT hub to delete.",
  + "description": "The name of the IoT hub.",
  "required": true,
  "type": "string"
  },
  {
  "name": "certificateName",
  "in":"path",
  - "description":"The name of the certificate",
  + "description":"The name of the certificate to delete.",
  "required":true,
  "type":"string"
  }
  