qemu-virt64-riscv avoid use tab in README*.md

Author: lygstate

bsp/qemu-virt64-riscv/README.md

@@ -6,17 +6,17 @@ English | [中文](./README_cn.md)
 
 - [1. Introduction](#1-introduction)
 - [2. Building](#2-building)
-	- [2.1. Installing the toolchain](#21-installing-the-toolchain)
-	- [2.2. Setting RT-Thread toolchain environment variables](#22-setting-rt-thread-toolchain-environment-variables)
-	- [2.3. Downloading the kernel](#23-downloading-the-kernel)
-	- [2.4. Configuring the kernel](#24-configuring-the-kernel)
-	- [2.5. Compiling the kernel](#25-compiling-the-kernel)
+  - [2.1. Installing the toolchain](#21-installing-the-toolchain)
+  - [2.2. Setting RT-Thread toolchain environment variables](#22-setting-rt-thread-toolchain-environment-variables)
+  - [2.3. Downloading the kernel](#23-downloading-the-kernel)
+  - [2.4. Configuring the kernel](#24-configuring-the-kernel)
+  - [2.5. Compiling the kernel](#25-compiling-the-kernel)
 - [3. Running](#3-running)
-	- [3.1. Installing QEMU](#31-installing-qemu)
-	- [3.2. Running QEMU](#32-running-qemu)
-		- [3.2.1. Running RT-Thread Standard Edition](#321-running-rt-thread-standard-edition)
-		- [3.2.2. Running RT-Thread Smart version](#322-running-rt-thread-smart-version)
-		- [3.2.3. Running RT-Thread Smart version + Root file-system](#323-running-rt-thread-smart-version--root-file-system)
+  - [3.1. Installing QEMU](#31-installing-qemu)
+  - [3.2. Running QEMU](#32-running-qemu)
+    - [3.2.1. Running RT-Thread Standard Edition](#321-running-rt-thread-standard-edition)
+    - [3.2.2. Running RT-Thread Smart version](#322-running-rt-thread-smart-version)
+    - [3.2.3. Running RT-Thread Smart version + Root file-system](#323-running-rt-thread-smart-version--root-file-system)
 - [4. How to use rv64ilp32 toolchain](#4-how-to-use-rv64ilp32-toolchain)
 - [5. Contact information](#5-contact-information)
 

bsp/qemu-virt64-riscv/README_cn.md

@@ -6,17 +6,17 @@
 
 - [1. 简介](#1-简介)
 - [2. 构建](#2-构建)
-	- [2.1. 安装工具链](#21-安装工具链)
-	- [2.2. 设置 RT-Thread 工具链环境变量](#22-设置-rt-thread-工具链环境变量)
-	- [2.3. 下载内核](#23-下载内核)
-	- [2.4. 配置内核](#24-配置内核)
-	- [2.5. 编译内核](#25-编译内核)
+  - [2.1. 安装工具链](#21-安装工具链)
+  - [2.2. 设置 RT-Thread 工具链环境变量](#22-设置-rt-thread-工具链环境变量)
+  - [2.3. 下载内核](#23-下载内核)
+  - [2.4. 配置内核](#24-配置内核)
+  - [2.5. 编译内核](#25-编译内核)
 - [3. 运行](#3-运行)
-	- [3.1. 安装 QEMU](#31-安装-qemu)
-	- [3.2. 运行 QEMU](#32-运行-qemu)
-		- [3.2.1. 运行 RT-Thread 标准版](#321-运行-rt-thread-标准版)
-		- [3.2.2. 运行 RT-Thread Smart 版](#322-运行-rt-thread-smart-版)
-		- [3.2.3. 运行 RT-Thread Smart 版 + 根文件系统](#323-运行-rt-thread-smart-版--根文件系统)
+  - [3.1. 安装 QEMU](#31-安装-qemu)
+  - [3.2. 运行 QEMU](#32-运行-qemu)
+    - [3.2.1. 运行 RT-Thread 标准版](#321-运行-rt-thread-标准版)
+    - [3.2.2. 运行 RT-Thread Smart 版](#322-运行-rt-thread-smart-版)
+    - [3.2.3. 运行 RT-Thread Smart 版 + 根文件系统](#323-运行-rt-thread-smart-版--根文件系统)
 - [4. 如何使用 rv64ilp32 工具链](#4-如何使用-rv64ilp32-工具链)
 - [5. 联系人信息](#5-联系人信息)