Update lib/model.js

Co-authored-by: Hafez <a.hafez852@gmail.com>

lib/model.js

@@ -3373,7 +3373,7 @@ Model.bulkWrite = async function bulkWrite(ops, options) {
  *
  * - one of the provided documents fails validation. In this case, `bulkSave()` does not send a `bulkWrite()`, and throws the first validation error.
  * - `bulkWrite()` fails (for example, due to being unable to connect to MongoDB or due to duplicate key error)
- * - `bulkWrite()` did not insert or update any documents. In this case, `bulkSave()` will throw a DocumentNotFound error.
+ * - `bulkWrite()` did not insert or update **any** documents. In this case, `bulkSave()` will throw a DocumentNotFound error.
  *
  * Note that `bulkSave()` will **not** throw an error if only some of the `save()` calls succeeded.
  *