gh: add page (#3854)

pages/common/gh.md

@@ -0,0 +1,32 @@
+# gh
+
+> Work seamlessly with GitHub from the command line.
+> More information: <https://cli.github.com/>.
+
+- Create a pull request:
+
+`gh pr create`
+
+- View a pull request in the browser:
+
+`gh pr view {{pr_number}}`
+
+- Check out pull requests locally:
+
+`gh pr checkout {{pr_number}}`
+
+- Check the status of your pull requests:
+
+`gh pr status`
+
+- Create a new issue:
+
+`gh issue create`
+
+- View and filter repository’s open issues:
+
+`gh issue list`
+
+- View an issue in the browser:
+
+`gh issue view {{issue_number}}`