doc typo fix

frame/contracts/README.md

@@ -1,6 +1,6 @@
-# Contract Module
+# Contracts Module
 
-The Contract module provides functionality for the runtime to deploy and execute WebAssembly smart-contracts.
+The Contracts module provides functionality for the runtime to deploy and execute WebAssembly smart-contracts.
 
 - [`Call`](https://paritytech.github.io/substrate/master/pallet_contracts/pallet/enum.Call.html)
 - [`Config`](https://paritytech.github.io/substrate/master/pallet_contracts/pallet/trait.Config.html)

frame/contracts/src/lib.rs

@@ -15,9 +15,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-//! # Contract Pallet
+//! # Contracts Pallet
 //!
-//! The Contract module provides functionality for the runtime to deploy and execute WebAssembly
+//! The Contracts module provides functionality for the runtime to deploy and execute WebAssembly
 //! smart-contracts.
 //!
 //! - [`Config`]
@@ -73,7 +73,7 @@
 //!
 //! ## Usage
 //!
-//! The Contract module is a work in progress. The following examples show how this Contract module
+//! The Contracts module is a work in progress. The following examples show how this module
 //! can be used to instantiate and call contracts.
 //!
 //! * [`ink`](https://github.com/paritytech/ink) is