Update Starknet Artifacts docs, fix invalid links (#1087)

website/docs/extensions/starknet/contract-target.md

@@ -4,7 +4,7 @@ import { data as rel } from "../../../github.data";
 
 # Starknet Contract Target
 
-The `starknet-contract` target allows to build the package as a [Starknet Contract](https://docs.starknet.io/documentation/getting_started/intro/).
+The `starknet-contract` target allows to build the package as a [Starknet Contract](https://book.cairo-lang.org/ch99-00-starknet-smart-contracts.html).
 It searches for all contract classes in the package, and builds a separate compiled JSON file each found class.
 Generated file will be named with following pattern: `[target name]_[contract name].contract_class.json`.
 
@@ -52,7 +52,7 @@ starknet = "{{ rel.stable.starknetPackageVersionReq }}"
 ## Sierra contract class generation
 
 The enabled by default property `sierra` determines whether this target builds a Sierra
-[Contract Class](https://docs.starknet.io/documentation/architecture_and_concepts/Contracts/contract-classes/) file.
+[Contract Class](https://docs.starknet.io/documentation/architecture_and_concepts/Smart_Contracts/contract-classes/) file.
 
 ## CASM contract class generation
 
@@ -136,6 +136,7 @@ Version 1 of this file has a structure like this:
       "id": "<opaque>",
       "package_name": "mypackage",
       "contract_name": "Contract2",
+      "module_path": "mypackage::path::to::module::Contract2",
       "artifacts": {
         "sierra": "mypackage_Contract2.contract_class.json",
         "casm": null
@@ -145,6 +146,7 @@ Version 1 of this file has a structure like this:
       "id": "<opaque>",
       "package_name": "mypackage",
       "contract_name": "Contract1",
+      "module_path": "mypackage::Contract1",
       "artifacts": {
         "sierra": "mypackage_Contract1.contract_class.json",
         "casm": null
@@ -157,6 +159,7 @@ Version 1 of this file has a structure like this:
 - `id` is an identifier of the item in `"contracts"` list. Use it to reference items, as it has the highest chance of being a unique value.
 - `package_name` is the name of the package in which the contract has been implemented.
 - `contract_name` is the name of the contract module.
+- `module_path` is the module path of compiled contract.
 - `artifacts` paths are relative to this file path.
   Depending on the targets defined in `[[target.starknet-contract]]` section of the `Scarb.toml`,
   some of the values might be `null`.