update packages to latest version

node_modules/npm/doc/cli/npm-docs.md

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+npm-docs(1) -- Docs for a package in a web browser maybe
+========================================================
+
+## SYNOPSIS
+
+    npm docs [<pkgname> [<pkgname> ...]]
+    npm docs (with no args in a package dir)
+    npm home [<pkgname> [<pkgname> ...]]
+    npm home (with no args in a package dir)
+
+## DESCRIPTION
+
+This command tries to guess at the likely location of a package's
+documentation URL, and then tries to open it using the `--browser`
+config param. You can pass multiple package names at once. If no
+package name is provided, it will search for a `package.json` in
+the current folder and use the `name` property.
+
+## CONFIGURATION
+
+### browser
+
+* Default: OS X: `"open"`, Windows: `"start"`, Others: `"xdg-open"`
+* Type: String
+
+The browser that is called by the `npm docs` command to open websites.
+
+### registry
+
+* Default: https://registry.npmjs.org/
+* Type: url
+
+The base URL of the npm package registry.
+
+
+## SEE ALSO
+
+* npm-view(1)
+* npm-publish(1)
+* npm-registry(7)
+* npm-config(1)
+* npm-config(7)
+* npmrc(5)
+* package.json(5)