Placement Rules in SQL tag incorrect

[Ming2029]

File: /release-8.1/placement-rules-in-sql.md
SHOW PLAYMENT LABELS is used in the document; Is the displayed label incorrect.
The command to create a placement rule below does not match, without us-west-1. Although it can be placed normally, it cannot be clearly understood.

For example:
Create a placement rule as follows:
CREATE PLAYMENT POLICY myplacementpolicy PRIMARYRegiON="us-east-1" egiONS="us-east-1, us-west-1";

The label is：
SHOW PLACEMENT LABELS;
+--------+-----------------------------+
| Key | Values |
+--------+-----------------------------+
| disk | ["ssd"] |
| region | ["us-east-1", "us-west-1"] |
| zone | ["us-east-1a"] |
+--------+-----------------------------+
3 rows in set (0.00 sec)

And the format for creating rule labels should be:
CREATE PLAYMENT POLICY myplacementpolicy PRIMARYRegiON="us-east-1" egiONS="us-east-1, us-west-1 us-west-1";

Screenshot of the location of the question: