Update no-extraneous-dependencies.md

Make glob pattern description more explicit

docs/rules/no-extraneous-dependencies.md

@@ -32,7 +32,7 @@ You can also use an array of globs instead of literal booleans:
 "import/no-extraneous-dependencies": ["error", {"devDependencies": ["**/*.test.js", "**/*.spec.js"]}]
 ```
 
-When using an array of globs, the setting will be set to `true` (no errors reported) if the name of the file being linted matches a single glob in the array, and `false` otherwise.
+When using an array of globs, the setting will be set to `true` (no errors reported) if the name of the file being linted (i.e. not the imported file/module) matches a single glob in the array, and `false` otherwise.
 
 There are 2 boolean options to opt into checking extra imports that are normally ignored: `includeInternal`, which enables the checking of internal modules, and `includeTypes`, which enables checking of type imports in TypeScript.