fix heading

Author: AyushBherwani1998

gator_versioned_docs/version-1.5.0/changelog/1.1.0.md

@@ -13,7 +13,7 @@ description: MetaMask Smart Accounts Kit v1.1.0 changelog
 - Smart Accounts Kit now supports Mantle.
   See [supported networks](../get-started/supported-networks.md) for more details.
 
-### Contract addresses
+## Contract addresses
 
 The following are the contract addresses for the
 [Delegation Framework version 1.3.0](https://github.com/MetaMask/delegation-framework/blob/v1.3.0/documents/Deployments.md),

gator_versioned_docs/version-1.5.0/changelog/1.2.0.md

@@ -21,7 +21,7 @@ to learn what Smart Accounts Kit collects and how to opt out.
 - Smart Accounts Kit now supports Katana.
   See [supported networks](../get-started/supported-networks.md) for more details.
 
-### Contract addresses
+## Contract addresses
 
 The following are the contract addresses for the
 [Delegation Framework version 1.3.0](https://github.com/MetaMask/delegation-framework/blob/v1.3.0/documents/Deployments.md),

gator_versioned_docs/version-1.5.0/changelog/1.5.0.md

@@ -14,7 +14,7 @@ description: MetaMask Smart Accounts Kit v1.5.0 changelog
 - You can now use `permissionContext` in `createOpenDelegation` to redelegate from an encoded delegation chain.
   See the [API reference](../reference/delegation/index.md#createopendelegation).
 
-### Contract addresses
+## Contract addresses
 
 The following are the contract addresses for the
 [Delegation Framework version 1.3.0](https://github.com/MetaMask/delegation-framework/blob/v1.3.0/documents/Deployments.md),