docs: update language service integration docs

Author: Rel1cx

apps/website/content/docs/getting-started/javascript.mdx

@@ -72,7 +72,24 @@ export default defineConfig([
 
 <Step>
 
-## Configure JavaScript (Optional)
+## Configure Language Service Integration (Optional)
+
+```ts title="eslint.config.js"
+// @ts-check
+import tseslint from "typescript-eslint";
+
+export default [
+  {
+    languageOptions: {
+      parser: tseslint.parser,
+      parserOptions: {
+        projectService: true,
+        tsconfigRootDir: import.meta.dirname,
+      },
+    },
+  },
+];
+```
 
 ```jsonc title="jsconfig.json"
 {
@@ -86,7 +103,7 @@ export default defineConfig([
 
 <Callout title="TIP">
 
-Once you've correctly configured the [`project`](https://typescript-eslint.io/packages/parser/#project) or [`projectService`](https://typescript-eslint.io/packages/parser/#projectservice) options in [`parserOptions`](https://eslint.org/docs/latest/use/configure/language-options#specifying-parser-options) for the files to be analyzed, ESLint React utilizes the information within to make more accurate determinations.
+Once you've correctly configured the language service integration for the files to be linted, ESLint React utilizes the information from the TypeScript compiler to provide better linting results.
 
 For more information, see the [Configure Language Config](/docs/configuration/configure-language-config) section.
 

apps/website/content/docs/getting-started/typescript.mdx

@@ -69,7 +69,24 @@ export default tseslint.config({
 
 <Step>
 
-## Configure TypeScript (Optional)
+## Configure Language Service Integration (Optional)
+
+```ts title="eslint.config.js"
+// @ts-check
+import tseslint from "typescript-eslint";
+
+export default [
+  {
+    languageOptions: {
+      parser: tseslint.parser,
+      parserOptions: {
+        projectService: true,
+        tsconfigRootDir: import.meta.dirname,
+      },
+    },
+  },
+];
+```
 
 ```jsonc title="tsconfig.json"
 {
@@ -83,7 +100,7 @@ export default tseslint.config({
 
 <Callout title="TIP">
 
-Once you've correctly configured the [`project`](https://typescript-eslint.io/packages/parser/#project) or [`projectService`](https://typescript-eslint.io/packages/parser/#projectservice) options in [`parserOptions`](https://eslint.org/docs/latest/use/configure/language-options#specifying-parser-options) for the files to be analyzed, ESLint React utilizes the information within to make more accurate determinations.
+Once you've correctly configured the language service integration for the files to be linted, ESLint React utilizes the information from the TypeScript compiler to provide better linting results.
 
 For more information, see the [Configure Language Config](/docs/configuration/configure-language-config) section.