Fix heading levels

Co-authored-by: Max Jakob <[email protected]>
Co-authored-by: florent-leborgne <[email protected]>

Author: 3 people

explore-analyze/elastic-inference/eis.md

@@ -44,9 +44,9 @@ You can now use `semantic_text` with the new ELSER endpoint on EIS. To learn how
 
 [Semantic Search with `semantic_text`](/solutions/search/semantic-search/semantic-search-semantic-text.md) has a detailed tutorial on using the `semantic_text` field and using the ELSER endpoint on EIS instead of the default endpoint. This is a great way to get started and try the new endpoint.
 
-## Limitations 
+### Limitations 
 
-### Batch size
+#### Batch size
 
 Batches are limited to a maximum of 16 documents.
 This is particularly relevant when using the [_bulk API](https://www.elastic.co/docs/api/doc/elasticsearch/v9/operation/operation-bulk) for data ingestion.