Fix hardhat init command syntax

Remove the extra dashes from 'npx hardhat --init' to the correct
'npx hardhat init' command.

Author: brunopgalvao

.ai/pages/smart-contracts-dev-environments-hardhat.md

@@ -57,7 +57,7 @@ Before setting up Hardhat, make sure the following are installed:
         yarn add --dev hardhat@^2.27.0 @nomicfoundation/hardhat-toolbox
 
         # Initialize a Hardhat project
-        npx hardhat --init
+        npx hardhat init
         ```
 
 3. You will be prompted to select certain configurations for your project. To quickly create a working setup, you can accept the default answers, which will create a JavaScript project, initialize it in the current directory, add a `.gitignore`, and install all dependencies.

smart-contracts/dev-environments/hardhat.md

@@ -56,7 +56,7 @@ Before setting up Hardhat, make sure the following are installed:
         yarn add --dev hardhat@^2.27.0 @nomicfoundation/hardhat-toolbox
 
         # Initialize a Hardhat project
-        npx hardhat --init
+        npx hardhat init
         ```
 
 3. You will be prompted to select certain configurations for your project. To quickly create a working setup, you can accept the default answers, which will create a JavaScript project, initialize it in the current directory, add a `.gitignore`, and install all dependencies.