Updated README.md

README.md

@@ -1,2 +1,76 @@
-# eslint-plugin-valkyriecoms
+# @valkyriecoms/eslint-plugin
 
+`@valkyriecoms/eslint-plugin` is an ESLint plugin designed for Valkyriecoms developers. This plugin helps you write code that adheres to the coding style and best practices of the Valkyriecoms project.
+
+## Installation
+
+First, install the plugin using npm.
+
+```bash
+npm install --save-dev eslint @valkyriecoms/eslint-plugin @typescript-eslint/parser
+```
+
+## Usage
+
+Create `eslint.config.js` file and write as follows
+
+```javascript:eslint.config.js
+import pluginValkyriecoms from '@valkyriecoms/eslint-plugin';
+import tsParser from '@typescript-eslint/parser';
+
+export default [
+	...pluginValkyriecoms.configs['recommended'],
+	{
+		files: ['**/*.js', '**/*.jsx'],
+		languageOptions: {
+			parserOptions: {
+				ecmaVersion: 'latest',
+				sourceType: 'module',
+			},
+		},
+	},
+	{
+		files: ['**/*.ts', '**/*.tsx'],
+		languageOptions: {
+			parserOptions: {
+				ecmaVersion: 'latest',
+				parser: tsParser,
+				project: ['./tsconfig.json'],
+				sourceType: 'module',
+				tsconfigRootDir: import.meta.dirname,
+			},
+		},
+	},
+];
+```
+
+In tsconfig, strictNullChecks must be true.
+
+```json:tsconfig.json
+{
+	"compilerOptions": {
+		// ...
+		"strictNullChecks": true,
+		// ...
+	},
+}
+```
+
+Add the eslint task to `package.json`
+
+```json:package.json
+{
+	"scripts": {
+		"eslint": "eslint './**/*.{js,jsx,ts,tsx}'"
+	},
+}
+```
+
+Run the task
+
+```
+npm run eslint
+```
+
+## License
+MIT License