chore: revise read action

.github/workflows/read-action.yaml

@@ -1,4 +1,4 @@
-name: read action
+name: Update book
 run-name: Book (${{ inputs.isbn }})
 permissions:
   contents: write
@@ -34,6 +34,12 @@ on:
       date-finished:
         description: Date you finished the book (YYYY-MM-DD). Optional.
         type: string
+      filename:
+        description: The file where you want to save your books.
+        default: _data/json/read.json
+      time-zone:
+        description: Your time zone.
+        default: America/Los_Angeles
 
 # Set up the steps to run the action
 jobs: