Fix indentation

Author: lcawl

docs/overlays/elasticsearch-serverless-openapi-overlays.yaml

@@ -64,34 +64,34 @@ actions:
             * No manual migrations: Data, indices, and resources are migrated transparently without user intervention.
             * New features available everywhere: Compatible additions like new APIs and parameters work across all supported versions.
             * Predictable upgrade timeline: API versions are supported for at least 18 months after newer versions are introduced.
-          
-          ## API version format
-          
-          API versions use ISO8601 date format: `YYYY-MM-DD` (for example, `2023-10-31`).
-        
-          ## Supported versions
-          
-          Elasticsearch Serverless currently supports the following API versions:
-          
-          * `2023-10-31`
-          
-          Future breaking changes will introduce new date-based versions.
-          Support policies for existing versions will be announced when new versions are released.
-          
-          ## How to specify API versions
-          
-          Clients specify API versions using the `Elastic-Api-Version` HTTP header:
-
-          ```
-          GET /_search HTTP/1.1
-          Elastic-Api-Version: 2023-10-31
-          ```
-          
-          ### Server responses
-          
-          The server's response depends on whether the client provides a version header:
-
-          * When a client sends the `Elastic-Api-Version` header, the server processes the request using the specified API version or returns HTTP 400 if the version is unsupported or malformed. 
-          * When no version header is provided, the server defaults to the latest supported API version.
-          
-          The server always includes the Elastic-Api-Version header in successful responses to indicate which version was used.
+            
+            ## API version format
+            
+            API versions use ISO8601 date format: `YYYY-MM-DD` (for example, `2023-10-31`).
+            
+            ## Supported versions
+            
+            Elasticsearch Serverless currently supports the following API versions:
+            
+            * `2023-10-31`
+            
+            Future breaking changes will introduce new date-based versions.
+            Support policies for existing versions will be announced when new versions are released.
+            
+            ## How to specify API versions
+            
+            Clients specify API versions using the `Elastic-Api-Version` HTTP header:
+            
+            ```
+            GET /_search HTTP/1.1
+            Elastic-Api-Version: 2023-10-31
+            ```
+            
+            ### Server responses
+            
+            The server's response depends on whether the client provides a version header:
+            
+            * When a client sends the `Elastic-Api-Version` header, the server processes the request using the specified API version or returns HTTP 400 if the version is unsupported or malformed. 
+            * When no version header is provided, the server defaults to the latest supported API version.
+            
+            The server always includes the Elastic-Api-Version header in successful responses to indicate which version was used.