fix formatting error in docs (#14163)

(cherry picked from commit 41a93ced23)

Co-authored-by: Jeff Washington (jwash) <wash678@gmail.com>

docs/src/cluster/vote-signing.md

@@ -24,19 +24,19 @@ The vote signing service consists of a JSON RPC server and a request processor.
 
 1. Register a new validator node
 
-- The request must contain validator's identity \(public key\)
-- The request must be signed with the validator's private key
-- The service drops the request if signature of the request cannot be verified
-- The service creates a new voting asymmetric key for the validator, and returns the public key as a response
-- If a validator tries to register again, the service returns the public key from the pre-existing keypair
+    - The request must contain validator's identity \(public key\)
+    - The request must be signed with the validator's private key
+    - The service drops the request if signature of the request cannot be verified
+    - The service creates a new voting asymmetric key for the validator, and returns the public key as a response
+    - If a validator tries to register again, the service returns the public key from the pre-existing keypair
 
-  2. Sign a vote
+2. Sign a vote
 
-- The request must contain a voting transaction and all verification data
-- The request must be signed with the validator's private key
-- The service drops the request if signature of the request cannot be verified
-- The service verifies the voting data
-- The service returns a signature for the transaction
+    - The request must contain a voting transaction and all verification data
+    - The request must be signed with the validator's private key
+    - The service drops the request if signature of the request cannot be verified
+    - The service verifies the voting data
+    - The service returns a signature for the transaction
 
 ## Validator voting