fix(typo): modify incorrect description (#486)

fix(typo): remove incorrect description

Author: zhouliqi

src/include/execution/executors/aggregation_executor.h

@@ -164,8 +164,8 @@ class AggregationExecutor : public AbstractExecutor {
 
   /**
    * Yield the next tuple from the insert.
-   * @param[out] tuple The next tuple produced by the insert
-   * @param[out] rid The next tuple RID produced by the insert
+   * @param[out] tuple The next tuple produced by the aggregation
+   * @param[out] rid The next tuple RID produced by the aggregation
    * @return `true` if a tuple was produced, `false` if there are no more tuples
    */
   auto Next(Tuple *tuple, RID *rid) -> bool override;

src/include/execution/executors/delete_executor.h

@@ -44,7 +44,7 @@ class DeleteExecutor : public AbstractExecutor {
   /**
    * Yield the number of rows deleted from the table.
    * @param[out] tuple The integer tuple indicating the number of rows deleted from the table
-   * @param[out] rid The next tuple RID produced by the update (ignore, not used)
+   * @param[out] rid The next tuple RID produced by the delete (ignore, not used)
    * @return `true` if a tuple was produced, `false` if there are no more tuples
    *
    * NOTE: DeleteExecutor::Next() does not use the `rid` out-parameter.