Update cheatsheets

tldr/npm-docs

@@ -0,0 +1,17 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# npm docs
+
+> Open the documentation for one or more packages in the default web browser.
+> More information: <https://docs.npmjs.com/cli/npm-docs>.
+
+- Open a specific package's documentation page:
+
+`npm docs {{package}}`
+
+- Open documentation for multiple packages at once:
+
+`npm docs {{package1 package2 ...}}`