chore(doc): fix stage.md typo
@@ -195,7 +195,7 @@ COPY INTO books FROM '@my_int_stage' files=('books.parquet') file_format = (type
### Step 6. Verify the Loaded Data
```sql
-SELECT * FROM Books;
+SELECT * FROM books;
+------------------------------+----------------------+-------+
| title | author | date |
+------------------------------+----------------------+-------+
