(breaks build dependent on kurtosis-cdk#162) fix how to section

Author: Jarrod Watts

mkdocs.yml

@@ -65,7 +65,7 @@ nav:
         - Gas Fees: cdk/concepts/gas-fees.md
         - Bridging & Interoperability: cdk/concepts/bridging.md
         - Admin Upgradeability: cdk/concepts/admin-upgradeability.md
-      - Build: '!import https://github.com/0xPolygon/kurtosis-cdk?branch=main'
+        - How to: '!import https://github.com/0xPolygon/kurtosis-cdk?branch=main'
       - Architecture:
         - CDK rollup: cdk/architecture/cdk-zkevm.md
         - CDK validium: cdk/architecture/cdk-validium.md