Add corrected segments.segment_replication.* field names

Signed-off-by: Bhumika Saini <sabhumik@amazon.com>

_api-reference/nodes-apis/nodes-stats.md

@@ -832,7 +832,10 @@ segments.index_writer_memory_in_bytes | Integer | The total amount of memory use
 segments.version_map_memory_in_bytes | Integer | The total amount of memory used by all version maps, in bytes. 
 segments.fixed_bit_set_memory_in_bytes | Integer | The total amount of memory used by fixed bit sets, in bytes. Fixed bit sets are used for nested objects and join fields.
 segments.max_unsafe_auto_id_timestamp | Integer | The timestamp for the most recently retired indexing request, in milliseconds since the epoch.
-segments.segment_replication | Object | Segment replication statistics for all primary shards when segment replication is enabled on the node.
+segments.segment_replication | Object | Segment replication statistics for all primary shards when segment replication is enabled on the node. 
+segments.segment_replication.max_bytes_behind | long | The maximum number of bytes behind the primary replica.
+segments.segment_replication.total_bytes_behind | long | The total number of bytes behind the primary replicas. 
+segments.segment_replication.max_replication_lag | long | The maximum amount of time, in milliseconds, taken by a replica to catch up to its primary. 
 segments.remote_store | Object | Statistics about remote segment store operations.
 segments.remote_store.upload | Object | Statistics related to uploads to the remote segment store.
 segments.remote_store.upload.total_upload_size | Object | The amount of data, in bytes, uploaded to the remote segment store.