新增 TOOL：Oh My Posh

TOOL%EF%BC%9AOh-My-Posh.md

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+# 安裝 Oh My Posh
+
+```bash
+curl -s https://ohmyposh.dev/install.sh | bash -s
+```
+
+(啟動 bash 就初始化工具)
+
+```bash
+echo 'eval "$(oh-my-posh init bash)"' >> ~/.bashrc
+```