Update download links

Author: iBug

docs/downloads.md

@@ -4,11 +4,18 @@ icon: material/download
 
 # 资源下载
 
-- Git for Windows 最新版本：[GitHub Releases](https://github.com/git-for-windows/git/releases/latest) / [清华大学 TUNA 镜像站](https://mirrors.tuna.tsinghua.edu.cn/github-release/git-for-windows/git/LatestRelease/)
+## 外部链接
 
-- Java 8 运行环境：
-  [Windows 64 位](https://vlab.ustc.edu.cn/downloads/jre-8u221-windows-x64.exe) /
-  [Mac OS X 10.7.3+](https://vlab.ustc.edu.cn/downloads/jre-8u221-macosx-x64.dmg)
+- Git for Windows：[GitHub Releases](https://github.com/git-for-windows/git/releases/latest) / [清华大学 TUNA 镜像站](https://mirrors.tuna.tsinghua.edu.cn/github-release/git-for-windows/git/LatestRelease/)
+- Java 8 运行环境：[Oracle 官网](https://www.java.com/zh-CN/download/manual.jsp)
+- TigerVNC 客户端：[GitHub Releases](https://github.com/TigerVNC/tigervnc/releases/latest)
+- RealVNC 客户端：[RealVNC 官网](https://www.realvnc.com/en/connect/download/viewer/)
+
+## 本地下载
+
+- Java 8 运行环境:
+  [Windows 64 位](https://vlab.ustc.edu.cn/downloads/jre-8u202-windows-x64.exe) /
+  [Mac OS X 10.7.3+](https://vlab.ustc.edu.cn/downloads/jre-8u202-macosx-x64.dmg)
 
 - Logisim (v2.7.1, 需要 Java):
   [Windows](https://vlab.ustc.edu.cn/downloads/logisim-win-2.7.1.exe) /
@@ -25,7 +32,10 @@ icon: material/download
   [macOS 10.12+](https://vlab.ustc.edu.cn/downloads/VNC-Viewer-6.20.113-MacOSX-x86_64.dmg)
 
 - Vivado Design Suite - HLx Editions 2016.3:
-  [全平台](https://vlab.ustc.edu.cn/downloadsi/Xilinx_Vivado_SDK_2016.3_1011_1.tar.gz) (tar.gz 压缩包，大小 21 GB)
+  [全平台](https://vlab.ustc.edu.cn/downloadsi/Xilinx_Vivado_SDK_2016.3_1011_1.tar.gz) (tar.gz 压缩包，大小 20.6 GiB)
 
 - Vivado Design Suite - HLx Editions 2019.1:
-  [全平台](https://vlab.ustc.edu.cn/downloadsi/Xilinx_Vivado_SDK_2019.1_0524_1430.tar.gz) (tar.gz 压缩包，大小 21 GB)
+  [全平台](https://vlab.ustc.edu.cn/downloadsi/Xilinx_Vivado_SDK_2019.1_0524_1430.tar.gz) (tar.gz 压缩包，大小 21.4 GiB)
+
+- Vivado Design Suite - HLx Editions 2023.1:
+  [全平台](https://vlab.ustc.edu.cn/downloadsi/Xilinx_Unified_2023.1_0507_1903.tar.gz) (tar.gz 压缩包，**大小 :warning: 110.8 GiB**)