npm-config: add page (#15924)

pages/common/npm-config.md

@@ -0,0 +1,32 @@
+# npm-config
+
+> Manage the `npm` configuration settings.
+> More information: <https://docs.npmjs.com/cli/commands/npm-config>.
+
+- Show all configuration settings:
+
+`npm config list`
+
+- List all configuration settings as `JSON`:
+
+`npm config list --json`
+
+- Get the value of a specific configuration key:
+
+`npm config get {{key}}`
+
+- Set a configuration key to a specific value:
+
+`npm config set {{key}}={{value}}`
+
+- Delete a configuration key:
+
+`npm config delete {{key}}`
+
+- Edit the global npm configuration file in the default editor:
+
+`npm config edit`
+
+- Attempt to repair invalid configuration items:
+
+`npm config fix`