Add fork testing to indexes

Author: jribbink

docs/blockchain-development-tutorials/cadence/index.md

@@ -50,6 +50,12 @@ Discover how to build native mobile applications that leverage Flow's blockchain
 - **[React Native Integration]** - Create cross-platform mobile apps with React Native and Flow
 - **[Walletless Mobile Apps]** - Implement progressive web apps with walletless onboarding
 
+## Testing
+
+Learn how to test Cadence smart contracts with a focus on fork testing, which allows you to run tests against real on-chain state from Flow mainnet or testnet.
+
+- **[Fork Testing]** - Run Cadence tests against a forked mainnet using real contracts and production data without deploying to live networks
+
 ## Key Features Covered
 
 ### Account Linking & Hybrid Custody
@@ -96,6 +102,7 @@ Flow's Cadence offers unparalleled capabilities for building user-friendly block
 [iOS Quickstart]: ./mobile/ios-quickstart.md
 [React Native Integration]: ./mobile/react-native-quickstart.md
 [Walletless Mobile Apps]: ./mobile/walletless-pwa.md
+[Fork Testing]: ./fork-testing/index.md
 [Flow Actions]: ../forte/flow-actions/index.md
 [Cross-VM Apps]: ../cross-vm-apps/index.md
 [Native VRF]: ../native-vrf/index.md

docs/blockchain-development-tutorials/index.md

@@ -88,6 +88,8 @@ Cadence tutorials covering Flow's native smart contract language for secure and
   - [Child Accounts] - Create and manage child accounts on Flow for hierarchical account structures and delegated account management with proper access controls.
   - [Account Linking with Dapper] - Link Flow accounts with Dapper Wallet to enable seamless user experiences and account management across different wallet providers.
 
+- [Fork Testing] - Run Cadence tests against a forked mainnet using real contracts and production data without deploying to live networks, enabling safe integration testing.
+
 ## [Flow EVM Development]
 
 Comprehensive tutorials for building on Flow EVM using Solidity smart contracts and Ethereum-compatible tools and frameworks.
@@ -198,6 +200,7 @@ Flow will continue to provide quality walkthroughs and tutorials to provide deve
 [Parent Accounts]: ./cadence/account-management/parent-accounts.md
 [Child Accounts]: ./cadence/account-management/child-accounts.md
 [Account Linking with Dapper]: ./cadence/account-management/account-linking-with-dapper.md
+[Fork Testing]: ./cadence/fork-testing/index.md
 [Flow EVM Development]: ./evm/index.md
 [EVM Setup]: ./evm/setup/index.md
 [EVM Development Tools]: ./evm/development-tools/index.md