Merge pull request #1910 from kevjames3/patch-1

Update to docs w.r.t. @uploadedfiles()

Author: kamilmysliwiec

content/techniques/file-upload.md

@@ -55,7 +55,7 @@ When using `FilesInterceptor()`, extract files from the `request` with the `@Upl
 @@filename()
 @Post('upload')
 @UseInterceptors(FilesInterceptor('files'))
-uploadFile(@UploadedFiles() files: Express.Multer.File) {
+uploadFile(@UploadedFiles() files: Array<Express.Multer.File>) {
   console.log(files);
 }
 @@switch
@@ -110,7 +110,7 @@ When using `AnyFilesInterceptor()`, extract files from the `request` with the `@
 @@filename()
 @Post('upload')
 @UseInterceptors(AnyFilesInterceptor())
-uploadFile(@UploadedFiles() files: Express.Multer.File) {
+uploadFile(@UploadedFiles() files: Array<Express.Multer.File>) {
   console.log(files);
 }
 @@switch