diff --git a/Create-DevTerm-R01-OS-image-from-scratch.md b/Create-DevTerm-R01-OS-image-from-scratch.md
index ee1c711..7bd72af 100644
--- a/Create-DevTerm-R01-OS-image-from-scratch.md
+++ b/Create-DevTerm-R01-OS-image-from-scratch.md
@@ -219,9 +219,9 @@ kernel patch url: https://github.com/clockworkpi/DevTerm/tree/main/Code/patch/d1
 to get original tina code from allwinner ,visit https://open.allwinnertech.com/
 
 ## Mainline toolchain
-https://github.com/riscv/riscv-gnu-toolchain
-all the same as Official toolchain except need to disable Vector in kernel `make menuconfig`
-
+https://github.com/riscv/riscv-gnu-toolchain  
+all the same as Official toolchain except need to disable Vector in kernel `make menuconfig`  
+  
 ![d1_disable_vector_kernel](https://raw.githubusercontent.com/clockworkpi/DevTerm/main/Pictures/d1_disable_vector_kernel.jpg)  
 
 # Make alpha os image