Modify a bug of bound scheme

README.md

 ### Program installation guide 
-1. Install CUDA (for NVIDIA environment) of ROCM (for AMD environment). Modify the installation path in the makefile - "DEV_PATH".
+#### 1. Install CUDA (for NVIDIA environment) or ROCM (for AMD environment). Modify the installation path in the makefile - "DEV_PATH".
 
-2. Install MPI. Modify the installation path in the makefile - "MPI_PATH".
+#### 2. Install MPI. Modify the installation path in the makefile - "MPI_PATH".
 
-3. The makefile will recognize the command line instruction "hipcc" to determine the environment.
+#### 3. The makefile will recognize the command line instruction "hipcc" to determine the environment.
 
-4. If you use NVIDIA environment, please modify "-code" and "-arch" according to the hardware architecture.
+#### 4. If you use NVIDIA environment, please modify "-code" and "-arch" according to the hardware architecture.
 
-5. Execute "make".
+#### 5. Execute "make".