Mode docs changes

Author: julian-elastic

docs/reference/query-languages/esql/_snippets/commands/layout/lookup-join.md

@@ -17,13 +17,22 @@ FROM <source_index>
 | LOOKUP JOIN <lookup_index> ON <field_name>
 ```
 
+```esql
+FROM <source_index>
+| LOOKUP JOIN <lookup_index> ON <field_name1>, <field_name2>, <field_name3>
+```
+
 **Parameters**
 
 `<lookup_index>`
 :   The name of the lookup index. This must be a specific index name - wildcards, aliases, and remote cluster references are not supported. Indices used for lookups must be configured with the [`lookup` index mode](/reference/elasticsearch/index-settings/index-modules.md#index-mode-setting).
 
-`<field_name>`
-:   The field to join on. This field must exist in both your current query results and in the lookup index. If the field contains multi-valued entries, those entries will not match anything (the added fields will contain `null` for those rows).
+`<field_name>` or `<field_name1>, <field_name2>, <field_name3>`
+:   The field(s) to join on. Can be either:
+  * A single field name
+  * A comma-separated list of field names {applies_to}`stack: ga 9.2`
+:   These fields must exist in both your current query results and in the lookup index. If the fields contains multi-valued entries, those entries will not match anything (the added fields will contain `null` for those rows).
+
 
 **Description**
 
@@ -32,7 +41,7 @@ results table by finding documents in a lookup index that share the same
 join field value as your result rows.
 
 For each row in your results table that matches a document in the lookup
-index based on the join field, all fields from the matching document are
+index based on the join fields, all fields from the matching document are
 added as new columns to that row.
 
 If multiple documents in the lookup index match a single row in your

docs/reference/query-languages/esql/esql-lookup-join.md

@@ -49,16 +49,6 @@ LOOKUP JOIN <lookup_index> ON <field_name1>, <field_name2>, <field_name3>  # Joi
 
 If you're familiar with SQL, `LOOKUP JOIN` has left-join behavior. This means that if no rows match in the lookup index, the incoming row is retained and `null`s are added. If many rows in the lookup index match, `LOOKUP JOIN` adds one row per match.
 
-```{applies_to}
-stack: ga 9.2
-serverless: ga
-```
-`LOOKUP JOIN` on more than one field is also supported. You can specify a comma separated list of fields to join on. 
-
-```esql
-LOOKUP JOIN <lookup_index> ON <field_name1>, <field_name2>, <field_name3>
-```
-
 ## Example
 
 You can run this example for yourself if you'd like to see how it works, by setting up the indices and adding sample data.