[Portal] docs: fix broken link (#7962)

Signed-off-by: VolodymyrBg <[email protected]>
Signed-off-by: Joaquim Verges <[email protected]>
Co-authored-by: Joaquim Verges <[email protected]>

Author: VolodymyrBg

apps/portal/src/app/tokens/explore/pre-built-modular/token/page.mdx

@@ -74,7 +74,7 @@ If you are signed in with an EOA wallet, you will be prompted to sign the transa
 
 ### Modular Contract
 
-This contract is created using the modular contract framework. Modules on this contract are upgradeable. [Learn more about Modular Contracts.](https://portal.thirdweb.com/contracts/modular-contracts/overview)
+This contract is created using the modular contract framework. Modules on this contract are upgradeable. [Learn more about Modular Contracts.](/contracts/modular-contracts)
 
 ### Configure Modules