tests(migrate): moved to typescript

.prettierrc

@@ -0,0 +1,4 @@
+{
+  "useTabs": true,
+  "tabWidth": 120
+}

packages/add/README.md

@@ -10,17 +10,25 @@ This package contains the logic to add new properties in a webpack configuration
 npm i -D webpack-cli @webpack-cli/add
 ```
 
+or
+
+```bash
+yarn add --dev  webpack-cli @webpack-cli/add
+```
+
 ## Usage
 
 To run the scaffolding instance programmatically, install it as a dependency. When using the package programmatically, one does not have to install webpack-cli.
 
 ### Node
+
 ```js
 const add = require("@webpack-cli/add");
 add();
 ```
 
 ### CLI (via `webpack-cli`)
+
 ```bash
 npx webpack-cli add
-```
+```

packages/add/index.ts

@@ -9,15 +9,14 @@ import modifyConfigHelper from "@webpack-cli/utils/modify-config-helper";
  * 	we're given on a generator
  *
  */
+const DEFAULT_WEBPACK_CONFIG_FILENAME: string = "webpack.config.js";
 
 export default function add(...args: string[]): Function {
-	const DEFAULT_WEBPACK_CONFIG_FILENAME: string = "webpack.config.js";
+  const filePaths: string[] = args.slice(3);
+  let configFile: string = DEFAULT_WEBPACK_CONFIG_FILENAME;
+  if (filePaths.length) {
+	configFile = filePaths[0];
+  }
 
-	const filePaths: string[] = args.slice(3);
-	let configFile: string = DEFAULT_WEBPACK_CONFIG_FILENAME;
-	if (filePaths.length) {
-		configFile = filePaths[0];
-	}
-
-	return modifyConfigHelper("add", defaultGenerator, configFile);
+  return modifyConfigHelper("add", defaultGenerator, configFile);
 }