improve handling file upload content

Author: zamronypj

handling-file-upload/index.md

@@ -14,7 +14,7 @@ If you have form like following snippet
 </form>
 ```
 
-To retrieve file uploaded by client, you need to call `getUploadedFile()`. It returns data of type `IUploadedFileArray` which array of `IUploadedFile` instance.
+To retrieve file uploaded by client, you need to call `getUploadedFile()` method from `IRequest` interface. It returns data of type `IUploadedFileArray` which array of `IUploadedFile` instance. Please read [Working with request](/working-with-request) for information how to work with request object.
 
 
 ```
@@ -90,7 +90,7 @@ If client does not send filename then it returns empty string.
 
 ## File Upload Validation
 
-Fano Framework validation feature provides several built-in validation rules you can use to [validate against file upload](/security/form-validation/built-in-validation-rules#uploaded-file), such as. to verify that field is indeed a file upload, to verify that file upload match certain MIME type or more advanced use, such as, antivirus scan validation or file format validation.
+Fano Framework validation feature provides several built-in validation rules you can use to [validate against file upload](/security/form-validation/built-in-validation-rules#uploaded-file), such as, to verify that field is indeed a file upload, to verify that file upload match certain MIME type or more advanced use, such as, antivirus scan validation or file format validation.
 
 ## Example demo