Update cheatsheets

tldr/npm-outdated

@@ -0,0 +1,17 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# npm-outdated
+
+> Check for outdated npm package dependencies.
+> More information: <https://docs.npmjs.com/cli/commands/npm-outdated>.
+
+- Find packages that are outdated in a project:
+
+`npm outdated`
+
+- Find packages that are outdated regardless of the current project:
+
+`npm outdated --all`