update (#2768)

Author: smallfish

docs/en/sql-reference/10-sql-commands/00-ddl/04-task/01-ddl-create_task.md

@@ -17,7 +17,7 @@ The CREATE TASK statement is used to define a new task that executes a specified
 CREATE [ OR REPLACE ] TASK [ IF NOT EXISTS ] <name>
  WAREHOUSE = <string>
  SCHEDULE = { <num> MINUTE | <num> SECOND | USING CRON <expr> <time_zone> }
- [ AFTER <string> [ , <string> , ... ]]
+ [ AFTER <string>
  [ WHEN <boolean_expr> ]
  [ SUSPEND_TASK_AFTER_NUM_FAILURES = <num> ]
  [ ERROR_INTEGRATION = <string> ]
@@ -34,7 +34,7 @@ AS
 | WAREHOUSE                                        | Required. Specifies the virtual warehouse to use for the task.                                                                                                               |
 | SCHEDULE                                         | Required. Defines the schedule on which the task will run. Can be specified in minutes or using a CRON expression along with a time zone.                                    |
 | SUSPEND_TASK_AFTER_NUM_FAILURES                  | Optional. The number of consecutive failures after which the task will be automatically suspended.                                                                           |
-| AFTER                                            | Lists tasks that must be completed before this task starts.                                                                                                                  |
+| AFTER                                            | List task that must be completed before this task starts.                                                                                                                  |
 | WHEN boolean_expr                                | A condition that must be true for the task to run.                                                                                                                           |
 | [ERROR_INTEGRATION](../16-notification/index.md) | Optional. The name of the notification integration to use for the task error notification with specific [task error payload ](./10-task-error-integration-payload.md)applied |
 | COMMENT                                          | Optional. A string literal that serves as a comment or description for the task.                                                                                             |
@@ -151,7 +151,7 @@ In this example, a task named `daily_sales_summary` is created with **second-lev
 ```sql
 CREATE TASK IF NOT EXISTS process_orders
  WAREHOUSE = 'etl'
- AFTER task1, task2
+ AFTER task1
 AS
  INSERT INTO data_warehouse.orders SELECT * FROM staging.orders;
 ```

docs/en/sql-reference/10-sql-commands/00-ddl/04-task/02-ddl-alter-task.md

@@ -29,7 +29,7 @@ ALTER TASK [ IF EXISTS ] <name> SET
 ALTER TASK [ IF EXISTS ] <name> MODIFY AS <sql>
 
 --- modify DAG when condition and after condition
-ALTER TASK [ IF EXISTS ] <name> REMOVE AFTER <string> [ , <string> , ... ] | ADD AFTER <string> [ , <string> , ... ]
+ALTER TASK [ IF EXISTS ] <name> REMOVE AFTER <string> | ADD AFTER <string>
 --- allow to change condition for task execution
 ALTER TASK [ IF EXISTS ] <name> MODIFY WHEN <boolean_expr>
 ```
@@ -41,8 +41,8 @@ ALTER TASK [ IF EXISTS ] <name> MODIFY WHEN <boolean_expr>
 | RESUME \| SUSPEND                | Resume or suspend the task.                                                                          |
 | SET                              | Change task settings. details parameter descriptions could be found on see [Create Task](01-ddl-create_task.md).                                                                               |
 | MODIFY AS                        | Change task SQL.                                                                                     |
-| REMOVE AFTER |  Remove predecessor tasks from the task dag, task would become a standalone task or a root task if no predecessor tasks left. |
-| ADD AFTER | Add predecessor tasks to the task dag. |
+| REMOVE AFTER |  Remove predecessor task from the task dag, task would become a standalone task or a root task if no predecessor tasks left. |
+| ADD AFTER | Add predecessor task to the task dag. |
 | MODIFY WHEN | Change the condition for task execution. |
 
 ## Examples
@@ -72,7 +72,7 @@ ALTER TASK mytaskchild MODIFY WHEN STREAM_STATUS('stream3') = False;
 In this example, we are modifying the mytaskchild task to change its WHEN condition. The task will now only run if the STREAM_STATUS function for 'stream3' evaluates to False. This means the task will execute when 'stream3' does not contain change data.
 
 ```sql
-ALTER TASK MyTask1 ADD AFTER 'task2', 'task3';
+ALTER TASK MyTask1 ADD AFTER 'task2';
 ```
 In this example, we are adding dependencies to the MyTask1 task. It will now run after the successful completion of both 'task2' and 'task3'. This creates a dependency relationship in a Directed Acyclic Graph (DAG) of tasks.