README.adoc: Update Indtroduction.

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>

README.adoc

@@ -9,10 +9,30 @@ opensbi: https://github.com/riscv-software-src/opensbi
 Linux:   https://kernel.org/
 ....
 
-= Compile zero_stage_boot
+Compiling zero_stage_boot is very straightforward, requiring only a standard RISC-V GCC compiler:
 
 CROSS_COMPILE=riscv64-unknown-linux-gnu- make
 
+However, we strongly recommend using the released binaries for the FPGA bringup. Click the Releases button on the right to obtain pre-compiled binaries for zsb, OpenSBI, and Image (Linux). These binary files have undergone comprehensive testing prior to release and contain detailed and precise version information.
+
+ - 64lp64 means running 64lp64 ABI on 64-bit Hardware.
+
+ - 32ilp32 means running 32ilp32 ABI on 32-bit Hardware.
+
+ - 64ilp32 means runing 64ilp64 ABI on 64-bit Hardware.
+
+ - zsb means zero_stage_boot.
+
+ - Linux-5.10 + opensbi-0.9 is for early customers.
+
+ - Linux-6.6 + opensbi-1.3 is for current.
+
+ - zsb-64lp64-xt is simply recompiled with a custom compiler; functionally, it is identical to zsb-64lp64.
+
+For a rv64 processor, you can download zsb-64lp64.tar.gz + opensbi-1.3-64lp64.tar.gz + linux-6.6-64lp64.tar.gz and prepare your own DTS + gdbinit.
+
+Then, you can use Jtag to run FPGA Platform.
+
 = linux-6.6 opensbi-1.3 DTS Example
 
 The T-HEAD C9xx DTB provided to OpenSBI generic firmware will usually have