docs: rename API/client fields

follow up on https://github.com/blockstack/stacks-blockchain-api/pull/266/

src/pages/references/stacks-blockchain-api.md

@@ -22,11 +22,11 @@ The Stacks 2.0 Blockchain API is centrally-hosted. However, every running Stacks
 While the Node RPC API doesn't give the same functionality as the hosted Stacks 2.0 Blockchain API, you get similar functionality in a way that is scoped to that specific node. The RPC API includes the following endpoints:
 
 - [POST /v2/transactions](https://blockstack.github.io/stacks-blockchain-api/#operation/post_core_node_transactions)
-- [GET /v2/contracts/interface/{stacks_address}/{contract_name}](https://blockstack.github.io/stacks-blockchain-api/#operation/get_contract_interface)
-- [POST /v2/map_entry/{stacks_address}/{contract_name}/{map_name}](https://blockstack.github.io/stacks-blockchain-api/#operation/get_contract_data_map_entry)
-- [GET /v2/contracts/source/{stacks_address}/{contract_name}](https://blockstack.github.io/stacks-blockchain-api/#operation/get_contract_source)
+- [GET /v2/contracts/interface/{contract_address}/{contract_name}](https://blockstack.github.io/stacks-blockchain-api/#operation/get_contract_interface)
+- [POST /v2/map_entry/{contract_address}/{contract_name}/{map_name}](https://blockstack.github.io/stacks-blockchain-api/#operation/get_contract_data_map_entry)
+- [GET /v2/contracts/source/{contract_address}/{contract_name}](https://blockstack.github.io/stacks-blockchain-api/#operation/get_contract_source)
 - [GET /v2/accounts/{principal}](https://blockstack.github.io/stacks-blockchain-api/#operation/get_account_info)
-- [POST /v2/contracts/call-read/{stacks_address}/{contract_name}/{function_name}](https://blockstack.github.io/stacks-blockchain-api/#operation/call_read_only_function)
+- [POST /v2/contracts/call-read/{contract_address}/{contract_name}/{function_name}](https://blockstack.github.io/stacks-blockchain-api/#operation/call_read_only_function)
 - [GET /v2/fees/transfer](https://blockstack.github.io/stacks-blockchain-api/#operation/get_fee_transfer)
 - [GET /v2/info](https://blockstack.github.io/stacks-blockchain-api/#operation/get_core_api_info)
 

src/pages/smart-contracts/testing-contracts.md

@@ -97,7 +97,7 @@ provider = await ProviderRegistry.createProvider();
 helloWorldClient = new Client("SP3GWX3NE58KXHESRYE4DYQ1S31PQJTCRXB3PE9SB.hello-world", "hello-world", provider);
 ```
 
-Take a look at the client initialization. It requires a contract id and name in the following format: `{owner_stacks_address}.{contract_identifier}`. The second field indicates the location of the smart contract file, without the `.clar` suffix. By default, the location is assumed to be relative to the `contracts` folder.
+Take a look at the client initialization. It requires a contract id and name in the following format: `{contract_address}.{contract_identifier}`. The second field indicates the location of the smart contract file, without the `.clar` suffix. By default, the location is assumed to be relative to the `contracts` folder.
 
 As you can see above, a sample Stacks address and contract identifier is already provided for you. You don't need to modify anything.
 

src/pages/stacks-blockchain/integrate-stacking.md

@@ -209,7 +209,7 @@ const smartContracts = new SmartContractsApi(apiConfig);
 
 // read-only contract call
 const isEligible = await smartContracts.callReadOnlyFunction({
-  stacksAddress: poxInfo.contract_id.split('.')[0],
+  contractAddress: poxInfo.contract_id.split('.')[0],
   contractName: poxInfo.contract_id.split('.')[1],
   functionName: 'can-stack-stx',
   readOnlyFunctionArgs: {
@@ -321,7 +321,7 @@ const contractName = poxInfo.contract_id.split('.')[1];
 const functionName = 'get-stacker-info';
 
 const stackingInfo = await smartContracts.callReadOnlyFunction({
-  stacksAddress: contractAddress,
+  contractAddress,
   contractName,
   functionName,
   readOnlyFunctionArgs: {