indentation fixed

Author: maryiaLichko

doc/reference/configuration/configuration_reference.rst

@@ -3651,8 +3651,10 @@ replication.autoexpel_by.*
     The ``by`` field helps differentiate between:
 
     - Instances that are part of the cluster and should adhere to the YAML configuration.
+
 	- Instances or tools (e.g., CDC tools) that use the replication channel but are not part of the cluster configuration.
 
+
     The default value of by is ``nil``, meaning no ``autoexpel`` criterion is applied unless explicitly set.
 
     Currently, the only supported value for by is ``prefix``. The ``prefix`` value instructs the system to identify instances