fix download endpoint docs

Author: devyetii

code/go/0chain.net/blobbercore/handler/object_operation_handler.go

@@ -264,9 +264,7 @@ func (fsh *StorageHandler) RedeemReadMarker(ctx context.Context, r *http.Request
 }
 
 // swagger:route POST /v1/file/download/{allocation} downloadFile
-//
-// DownloadHandler is the handler to respond to download requests from clients.
-//
+// Download Handler (downloadFile)
 // parameters:
 //   +name: allocation
 //     description: TxHash of the allocation in question.
@@ -329,8 +327,8 @@ func (fsh *StorageHandler) RedeemReadMarker(ctx context.Context, r *http.Request
 //     in: header
 //     type: string
 //  +name: X-Verify-Download
-//     description: If set to "true", the download should be verified. If the mode is "thumbnail", 
-//					the thumbnail hash stored in the db is compared with the hash of the actual file.
+//     description: If set to "true", the download should be verified. If the mode is "thumbnail",\
+//					the thumbnail hash stored in the db is compared with the hash of the actual file.\
 //     				If the mode is "full", merkle proof is calculated and returned in the response.
 //     in: header
 //     type: string