improve docs for logs_dynmaic_pipeline and logs_dynamic_id

- Added caveat that the attributes are only removed when `otel`
mapping mode is used

exporter/elasticsearchexporter/README.md

@@ -143,10 +143,10 @@ This can be customised through the following settings:
   - `date_format`(default=`%Y.%m.%d`): Time format (based on strftime) to generate the second part of the Index name.
 
 - `logs_dynamic_id` (optional): Dynamically determines the document ID to be used in Elasticsearch based on a log record attribute.
-  - `enabled`(default=false): Enable/Disable dynamic ID for log records. If `elasticsearch.document_id` exists and is not an empty string in the log record attributes, it will be used as the document ID. Otherwise, the document ID will be generated by Elasticsearch. The attribute `elasticsearch.document_id` is removed from the final document. See [Setting a document id dynamically](#setting-a-document-id-dynamically).
+  - `enabled`(default=false): Enable/Disable dynamic ID for log records. If `elasticsearch.document_id` exists and is not an empty string in the log record attributes, it will be used as the document ID. Otherwise, the document ID will be generated by Elasticsearch. The attribute `elasticsearch.document_id` is removed from the final document when the `otel` mapping mode is used. See [Setting a document id dynamically](#setting-a-document-id-dynamically).
 
 - `logs_dynamic_pipeline` (optional): Dynamically determines the ingest pipeline to be used in Elasticsearch based on a log record attribute.
-  - `enabled`(default=false): Enable/Disable dynamic pipeline for log records. If `elasticsearch.document_pipeline` exists and is not an empty string in the log record attributes, it will be used as the Elasticsearch ingest pipeline. The attribute `elasticsearch.document_pipeline` is removed from the final document.
+  - `enabled`(default=false): Enable/Disable dynamic pipeline for log records. If `elasticsearch.document_pipeline` exists and is not an empty string in the log record attributes, it will be used as the Elasticsearch ingest pipeline. The attribute `elasticsearch.document_pipeline` is removed from the final document when the `otel` mapping mode is used.
 
 ### Elasticsearch document mapping