choco-outdated: add page (#2032)

pages/windows/choco-outdated.md

@@ -0,0 +1,19 @@
+# choco outdated
+
+> Check for outdated packages with Chocolatey.
+
+- Display a list of outdated packages in table format:
+
+`choco outdated`
+
+- Ignore pinned packages in the output:
+
+`choco outdated --ignore-pinned`
+
+- Specify a custom source to check packages from:
+
+`choco outdated --source {{source_url|alias}}`
+
+- Provide a username and password for authentication:
+
+`choco outdated --user {{username}} --password {{password}}`