docs: add README with one-liner install commands

README.md

@@ -0,0 +1,19 @@
+# Shell Scripts
+
+> **Tip:** Install Docker Engine on Debian/Ubuntu.
+
+```bash
+curl -fsSL https://git.vanusys.com/VanuSystems/shell-scripts/raw/branch/main/install-docker.sh | sudo bash
+```
+
+> **Tip:** Configure registry mirrors for Docker and restart the daemon.
+
+```bash
+curl -fsSL https://git.vanusys.com/VanuSystems/shell-scripts/raw/branch/main/set-docker-mirror.sh | sudo bash
+```
+
+> **Tip:** Append 2-space indent settings to `~/.vimrc`.
+
+```bash
+curl -fsSL https://git.vanusys.com/VanuSystems/shell-scripts/raw/branch/main/set-vim-2space.sh | bash
+```