doc: fix corepack grammar for --force flag

PR-URL: #40762
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>
Reviewed-By: Voltrex <mohammadkeyvanzade94@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

doc/api/corepack.md

@@ -101,7 +101,7 @@ install. To avoid this problem, consider one of the following options:
   binaries anyway and will ensure that the requested versions are always
   available, so installing the package managers explicitly isn't needed anymore.
 
-* Add the `--force` to `npm install`; this will tell npm that it's fine to
+* Add the `--force` flag to `npm install`; this will tell npm that it's fine to
   override binaries, but you'll erase the Corepack ones in the process (should
   that happen, run [`corepack enable`][] again to add them back).