Use amendment disclaimer & update tx ref intros

docs/tutorials/how-tos/use-tokens/create-an-automated-market-maker.md

@@ -14,7 +14,7 @@ steps: ['Connect', 'Generate', 'Acquire tokens', 'Check for AMM', 'Look up AMMCr
 ---
 # Create an Automated Market Maker
 
-_(Added by the [AMM amendment][])_
+{% amendment-disclaimer name="AMM" /%}
 
 An [Automated Market Maker (AMM)](../../../concepts/tokens/decentralized-exchange/automated-market-makers.md) can be an efficient way to facilitate exchanges between two assets while earning its liquidity providers passive income. This tutorial shows how to create an AMM for a given asset pair.
 

docs/tutorials/how-tos/use-xrpl-sidechains/set-up-iou-iou-bridge.md

@@ -8,7 +8,7 @@ labels:
 ---
 # Set Up an IOU-IOU Bridge
 
-_(Requires the [XChainBridge amendment][] {% not-enabled /%})_
+{% amendment-disclaimer name="XChainBridge" /%}
 
 Setting up an IOU-IOU bridge enables you to move tokens between chains.
 

docs/tutorials/how-tos/use-xrpl-sidechains/set-up-xrp-xrp-bridge.md

@@ -8,7 +8,7 @@ labels:
 ---
 # Set Up an XRP-XRP Bridge
 
-_(Requires the [XChainBridge amendment][] {% not-enabled /%})_
+{% amendment-disclaimer name="XChainBridge" /%}
 
 Setting up an XRP-XRP bridge enables you to move XRP between chains. The set up requires using the genesis account on the issuing chain as a door account to submit attestations and create transaction submission accounts for witnesses.
 

docs/tutorials/how-tos/use-xrpl-sidechains/submit-cross-chain-transaction.md

@@ -8,7 +8,7 @@ labels:
 ---
 # Submit Cross-chain Transactions
 
-_(Requires the [XChainBridge amendment][] {% not-enabled /%})_
+{% amendment-disclaimer name="XChainBridge" /%}
 
 This tutorial explains how to create a test account on a locking chain (_Devent_), and transfer XRP to an issuing chain (_Sidechain-Devnet_), using a supported [client library](../../../references/client-libraries.md) to query and submit transactions. Witness servers are already set up to monitor the XRP-XRP bridge and submit attestations.