docs(fassets): add reusable library tip for FXRP Asset Manager address retrieval

Author: fassko

docs/fassets/developer-guides/1-fassets-get-asset-amanager-address-registry.mdx

@@ -51,6 +51,13 @@ To get the [FAssets asset manager](/fassets/reference/IAssetManager) address, yo
 
 You can find out this sample code in the [Flare starter kit](/network/guides/hardhat-foundry-starter-kit).
 
+:::tip Reusable Library
+
+To reuse this code to get the FXRP Asset Manager address in other smart contracts, you can wrap it in a reusable library.
+This is useful if you want to use the FXRP Asset Manager address in multiple smart contracts and avoid repeating the same code.
+
+:::
+
 ## Next Steps
 
 In this guide, you learned how to get the FXRP Asset Manager address for the FAssets system by interacting with the `AssetManager` contract using the [`IAssetManager`](/fassets/reference/IAssetManager) interface.