docs: missing sentences

Close #1471

Author: posva

src/firestore/index.ts

@@ -62,7 +62,8 @@ export function useCollection<T>(
 export interface UseDocumentOptions extends _UseFirestoreRefOptions {}
 
 /**
- * Creates a reactive document from a document ref from Firestore. Extracts the type of the converter
+ * Creates a reactive document from a document ref from Firestore. Automatically extracts the type of the converter or
+ * the document.
  *
  * @param documentRef - document reference
  * @param options - optional options

src/firestore/utils.ts

@@ -15,7 +15,7 @@ import { _FirestoreRefOptionsWithDefaults } from './bind'
 export type FirestoreReference = Query | DocumentReference | CollectionReference
 
 /**
- * Default converter for Firestore data. Can be overridden by setting the
+ * Default converter for Firestore data. Can be overridden globally by setting `globalFirestoreOptions.converter`.
  */
 export const firestoreDefaultConverter: FirestoreDataConverter<VueFirestoreDocumentData> =
   {