gh-copilot: add page (#18146)

pages/common/gh-copilot.md

@@ -0,0 +1,28 @@
+# gh copilot
+
+> Interact with GitHub Copilot.
+> More information: <https://github.com/github/gh-copilot#usage>.
+
+- Suggest a command, given a description:
+
+`gh copilot suggest "{{Install git}}"`
+
+- Suggest a Git command:
+
+`gh copilot suggest {{[-t|--target]}} git "{{Undo the most recent local commits}}"`
+
+- Explain a command:
+
+`gh copilot explain "{{traceroute example.com}}"`
+
+- Generate shell-specific aliases for Bash:
+
+`echo 'eval "$(gh copilot alias -- bash)"' >> ~/.bashrc`
+
+- Generate shell-specific aliases for Zsh:
+
+`echo 'eval "$(gh copilot alias -- zsh)"' >> ~/.zshrc`
+
+- Configure options:
+
+`gh copilot config`