fix docs

docs/en/12-taos-sql/04-stable.md

@@ -51,6 +51,11 @@ DESCRIBE [db_name.]stb_name;
 
 ### View tag information for all child tables in the supertable
 
+```
+SHOW TABLE TAGS FROM table_name [FROM db_name];
+SHOW TABLE TAGS FROM [db_name.]table_name;
+```
+
 ```
 taos> SHOW TABLE TAGS FROM st1;
              tbname             |     id      |         loc          |

docs/zh/12-taos-sql/04-stable.md

@@ -51,6 +51,11 @@ DESCRIBE [db_name.]stb_name;
 
 ### 获取超级表中所有子表的标签信息
 
+```
+SHOW TABLE TAGS FROM table_name [FROM db_name];
+SHOW TABLE TAGS FROM [db_name.]table_name;
+```
+
 ```
 taos> SHOW TABLE TAGS FROM st1;
              tbname             |     id      |         loc          |