update sample plugin with eslint instructions

eslint.config.mts

@@ -0,0 +1,34 @@
+import tseslint from 'typescript-eslint';
+import obsidianmd from "eslint-plugin-obsidianmd";
+import globals from "globals";
+import { globalIgnores } from "eslint/config";
+
+export default tseslint.config(
+	{
+		languageOptions: {
+			globals: {
+				...globals.browser,
+			},
+			parserOptions: {
+				projectService: {
+					allowDefaultProject: [
+						'eslint.config.js',
+						'manifest.json'
+					]
+				},
+				tsconfigRootDir: import.meta.dirname,
+				extraFileExtensions: ['.json']
+			},
+		},
+	},
+	...obsidianmd.configs.recommended,
+	globalIgnores([
+		"node_modules",
+		"dist",
+		"esbuild.config.mjs",
+		"eslint.config.js",
+		"version-bump.mjs",
+		"versions.json",
+		"main.js",
+	]),
+);