[BSP] Update README.md for thread-smart

bsp/thead-smart/README.md

 # T-HEAD SMART-EVB Introduction
 SMART-EVB is a development board provided by T-HEAD, based on FPGA to provide implementation, integrating T-HEAD's RISC-V CPU (eg. E902/E906/C906) and C-SKY CPU (eg. E805/E804/E803/E802 ), integrates basic peripheral resources such as GPIO/TIMER/UART/RAM.
 
-##The main resources on board are as follows:
+## The main resources on board are as follows:
+
 1. SMART-EVB for E906/E906F/E906FD
+
 | res | description |
 | -- | -- |
 |ISA | RISCV |
@@ -12,6 +14,7 @@ SMART-EVB is a development board provided by T-HEAD, based on FPGA to provide im
 
 
 2. SMART-EVB for E804/E804F/E804D
+
 | res | description |
 | -- | -- |
 |ISA | C-SKY |
@@ -22,24 +25,24 @@ SMART-EVB is a development board provided by T-HEAD, based on FPGA to provide im
 
 # Compile T-HEAD BSP
 SMART-EVB BSP supports GCC compiler, the version information is:
+
 1. SMART-EVB for E906/E906F/E906FD
+
 | IDE/Compiler| version|
 | - | - |
 | GCC | gcc version 8.4.0 (C-SKY RISCV Tools V1.9.6 B20200616) |
 
 # run smart-evb bsp
+
 1. Connect JTAG
 2. Connect the serial port
 3. riscv64-unknown-elf-gdb rtthread-e906f.elf
 
 run log as follows:
-```
+```bash
  \ | /
 - RT -     Thread Operating System
  / | \     4.0.3 build Sep  2 2020
  2006 - 2020 Copyright by rt-thread team
 msh >
 ```
-
-
-