ncu: add page (#10617)

add page for `npm-check-updates`.

---------

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>
Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

pages/common/ncu.md

@@ -0,0 +1,25 @@
+# ncu
+
+> Find newer versions of package dependencies and check outdated npm packages locally or globally.
+> `ncu` only updates dependency versions in `package.json`. To install the new versions, run `npm install` afterwards.
+> More information: <https://github.com/raineorshine/npm-check-updates>.
+
+- List outdated dependencies in the current directory:
+
+`ncu`
+
+- List outdated global npm packages:
+
+`ncu -g`
+
+- Upgrade all dependencies in the current directory:
+
+`ncu -u`
+
+- Interactively upgrade dependencies in the current directory:
+
+`ncu -i`
+
+- Display help:
+
+`ncu -h`