Rearrange index page

Signed-off-by: Fanit Kolchina <[email protected]>

_query-dsl/joining/index.md

@@ -12,10 +12,13 @@ redirect_from:
 
 OpenSearch is a distributed system in which data is spread across multiple nodes. Thus, running a SQL-like JOIN operation in OpenSearch is resource intensive. As an alternative, OpenSearch provides the following queries that perform join operations and are optimized for scaling across multiple nodes:
 
-- `nested` queries: Act as wrappers for other queries to search [nested]({{site.url}}{{site.baseurl}}/field-types/supported-field-types/nested/) fields. The nested field objects are searched as though they were indexed as separate documents.
-- [`has_child`]({{site.url}}{{site.baseurl}}/query-dsl/joining/has-child/) queries: A [join]({{site.url}}{{site.baseurl}}/field-types/supported-field-types/join/) field type establishes a parent/child relationship between documents in the same index. `has_child` queries search for parent documents whose child documents match the query.
-- [`has_parent`]({{site.url}}{{site.baseurl}}/query-dsl/joining/has-parent/) queries: A [join]({{site.url}}{{site.baseurl}}/field-types/supported-field-types/join/) field type establishes a parent/child relationship between documents in the same index. `has_parent` queries search for child documents whose parent documents match the query.
-- [`parent_id`]({{site.url}}{{site.baseurl}}/query-dsl/joining/parent-id/) queries: A [join]({{site.url}}{{site.baseurl}}/field-types/supported-field-types/join/) field type establishes a parent/child relationship between documents in the same index. `parent_id` queries search for child documents that are joined to a specific parent document. 
+
+- Queries to search [nested]({{site.url}}{{site.baseurl}}/field-types/supported-field-types/nested/) fields:
+    - `nested` queries: Act as wrappers for other queries to search [nested]({{site.url}}{{site.baseurl}}/field-types/supported-field-types/nested/) fields. The nested field objects are searched as though they were indexed as separate documents.
+- Queries to search documents connected by a [join]({{site.url}}{{site.baseurl}}/field-types/supported-field-types/join/) field type, which establishes a parent/child relationship between documents in the same index:
+    - [`has_child`]({{site.url}}{{site.baseurl}}/query-dsl/joining/has-child/) queries: Search for parent documents whose child documents match the query.
+    - [`has_parent`]({{site.url}}{{site.baseurl}}/query-dsl/joining/has-parent/) queries: Search for child documents whose parent documents match the query.
+    - [`parent_id`]({{site.url}}{{site.baseurl}}/query-dsl/joining/parent-id/) queries: Search for child documents that are joined to a specific parent document. 
 
 If [`search.allow_expensive_queries`]({{site.url}}{{site.baseurl}}/query-dsl/index/#expensive-queries) is set to `false`, then joining queries are not executed.
 {: .important}