Update cheatsheets

tldr/npm-ls

@@ -0,0 +1,29 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# npm ls
+
+> Print installed packages to `stdout`.
+> More information: <https://docs.npmjs.com/cli/commands/npm-ls>.
+
+- Print all versions of direct dependencies to `stdout`:
+
+`npm ls`
+
+- Print all installed packages including peer dependencies:
+
+`npm ls --all`
+
+- Print dependencies with extended information:
+
+`npm ls --long`
+
+- Print dependencies in parseable format:
+
+`npm ls --parseable`
+
+- Print dependencies in JSON format:
+
+`npm ls --json`