diff --git a/README.md b/README.md
index 2341b3b..491599f 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,10 @@
 Backup file or directory to OSS, can be encrypted.
 
 
+<br>
+
+Use direct signed URL or SDK?
+
 OSS SDK in Rust:
 * https://crates.io/crates/oss_rust_sdk
 * https://github.com/NoXF/oss-rust-sdk