Add slightly nicer formatting re: Protocol Changes doc

docs/protocol_changes/index.md

@@ -4,14 +4,16 @@ layout: default
 nav_order: 5
 ---
 
+# Protocol Changes
+
 The protocol has no central authority nor organization nor actors (such as
 liquidity providers/validators) who can compel new protocol rules. The Serai
 protocol is as-written with all granted functionality and declared rules
 present.
 
 Validators are explicitly granted the ability to signal for two things to occur:
 
-1) Halt another validator set.
+### 1) Halt another validator set.
 
 This will presumably occur if another validator set turns malicious and is the
 expected incident response in order to apply an economic penalty of ideally
@@ -22,7 +24,7 @@ validator sets have accepted responsibility, and accepting responsibility
 requires `Batch` publication). This effectively burns the malicious validators'
 stake.
 
-2) Retire the protocol.
+### 2) Retire the protocol.
 
 A supermajority of validators may favor a signal (an opaque 32-byte ID). A
 common signal gaining sufficient favor will cause the protocol to stop producing