Move pages under tldr, lint run.sh, update docs

tldr/gh-alias

@@ -0,0 +1,29 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# gh alias
+
+> Manage GitHub CLI command aliases.
+> More information: <https://cli.github.com/manual/gh_alias>.
+
+- List all the aliases `gh` is configured to use:
+
+`gh alias list`
+
+- Create a `gh` subcommand alias:
+
+`gh alias set {{pv}} '{{pr view}}'`
+
+- Set a shell command as a `gh` subcommand:
+
+`gh alias set --shell {{alias_name}} {{command}}`
+
+- Delete a command shortcut:
+
+`gh alias delete {{alias_name}}`
+
+- Display the subcommand help:
+
+`gh alias`