Adjust description to match the behaviour of the checkbox

extensions/npm/package.nls.json

@@ -5,7 +5,7 @@
 	"config.npm.runSilent": "Run npm commands with the `--silent` option.",
 	"config.npm.packageManager": "The package manager used to run scripts.",
 	"config.npm.exclude": "Configure glob patterns for folders that should be excluded from automatic script detection.",
-	"config.npm.enableScriptExplorer": "Enable an explorer view for npm scripts.",
+	"config.npm.enableScriptExplorer": "Enable an explorer view for npm scripts when there is no top-level 'package.json' file.",
 	"config.npm.scriptExplorerAction": "The default click action used in the scripts explorer: `open` or `run`, the default is `open`.",
 	"config.npm.fetchOnlinePackageInfo": "Fetch data from https://registry.npmjs/org and https://registry.bower.io to provide auto-completion and information on hover features on npm dependencies.",
 	"npm.parseError": "Npm task detection: failed to parse the file {0}",