docs: Removed run-script from npm build description (#5192)

As suggested here, this is in error: #5185

Author: ColmBhandal

docs/content/commands/npm-build.md

@@ -19,7 +19,7 @@ This is the plumbing command called by `npm link` and `npm install`.
 It should generally be called during installation, but if you need to run it
 directly, run:
 ```bash
-    npm run-script build
+    npm build
 ```
 
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