Update stark curve link in docs (#2889)

- Update the link to fix failing docs build as here:
https://github.com/foundry-rs/starknet-foundry/actions/runs/13019331002/job/36320971572

Author: ddoktorski

docs/src/starknet/sncast-overview.md

@@ -6,7 +6,7 @@ Starknet Foundry `sncast` is a command line tool for performing Starknet RPC cal
 > At the moment, `sncast` only supports contracts written in [Cairo](https://github.com/starkware-libs/cairo) v1 and v2.
 
 > ⚠️ **Warning**
-> Currently, support is only provided for accounts that use the default signature based on the [Stark curve](https://docs.starknet.io/documentation/architecture_and_concepts/Cryptography/stark-curve).
+> Currently, support is only provided for accounts that use the default signature based on the [Stark curve](https://docs.starknet.io/architecture-and-concepts/cryptography/#stark-curve).
 
 ## How to Use `sncast`