fix(docs): typo (#3618)

Author: kobenguyent

docs/helpers/JSONResponse.md

@@ -207,16 +207,16 @@ Use pre-initialized joi instance by passing function callback:
 
 I.seeResponseMatchesJsonSchema(joi => {
   return joi.object({
-    name: joi.string();
-    id: joi.number();
+    name: joi.string(),
+    id: joi.number()
   })
 });
 
 // or pass a valid schema
-const joi = require('joi);
+const joi = require('joi');
 
 I.seeResponseMatchesJsonSchema(joi.object({
-  name: joi.string();
+  name: joi.string(),
   id: joi.number();
 });
 ```

lib/helper/JSONResponse.js

@@ -300,16 +300,16 @@ class JSONResponse extends Helper {
    *
    * I.seeResponseMatchesJsonSchema(joi => {
    *   return joi.object({
-   *     name: joi.string();
-   *     id: joi.number();
+   *     name: joi.string(),
+   *     id: joi.number()
    *   })
    * });
    *
    * // or pass a valid schema
-   * const joi = require('joi);
+   * const joi = require('joi');
    *
    * I.seeResponseMatchesJsonSchema(joi.object({
-   *   name: joi.string();
+   *   name: joi.string(),
    *   id: joi.number();
    * });
    * ```