Fixed testing-with-rust docs
Docs outdated, added `.methods()` to contract calling
Before
```rust
contract
.method_name()
.call()
.await
.unwrap()
```
After
```rust
contract
.methods()
.method_name()
.call()
.await
.unwrap()
```
@@ -208,6 +208,7 @@ async fn initialize_and_increment() {
// Now you have an instance of your contract you can use to test each function
let result = contract_instance
+ .methods()
.initialize_counter(42)
.call()
.await
@@ -217,6 +218,7 @@ async fn initialize_and_increment() {
// Call `increment_counter()` method in our deployed contract.
let result = contract_instance
+ .methods()
.increment_counter(10)
.call()
.await
