docs: backfill next readme with getGlobalStyles() and getTemplateData()

docs/getting-started.md

@@ -7,7 +7,7 @@ This guide will walk you through setting up a headless WordPress app using SnapW
 ### Prerequisites
 
 -   **PHP**: v7.4+
--   **WordPress**: v6.0+
+-   **WordPress**: v6.7+
 -   A **[Block Theme](https://wordpress.org/documentation/article/block-themes/)**
 
 ### Installation Steps

packages/next/README.md

@@ -167,16 +167,16 @@ export default function ScriptModuleExample() {
             <ScriptModule
                 src="https://example.com/main.js"
                 handle="example-main-script"
-                dependencies=[
-                 {
-                importType: 'static',
-                connectedScriptModule: {
-                    handle: '@module',
-                    src: 'http://example.com/index.min.js'
-                     }
-                 }
-                ]
-             />
+                dependencies={[
+                    {
+                        importType: 'static',
+                        connectedScriptModule: {
+                            handle: '@module',
+                            src: 'http://example.com/index.min.js'
+                        }
+                    }
+                ]}
+            />
         </div>
     );
 }
@@ -207,6 +207,38 @@ export default function CustomFonts() {
 }
 ```
 
+### `getGlobalStyles()`
+
+Global styles can be modified by passing the `getGlobalStyles` attribute to the [RootLayout](./src/root-layout/index.tsx) within the `src/app/layout.tsx` file of the frontend application.
+
+`getGlobalStyles` takes an async callback function that returns an object containing global styles.
+
+The default definition for `getGlobalStyles` function passed in `getGlobalStyles` attribute can be found in [@snapwp/query](../packages/query/README.md) package.
+
+Type Definition of `getGlobalStyles`:
+
+```typescript
+type getGlobalStyles = () => Promise< GlobalHeadProps >;
+```
+
+Type definition of `GlobalHeadProps` can be found in [@snapwp/core](../packages/core/README.md) package.
+
+### `getTemplateData()`
+
+Template data can be modified by passing `getTemplateData` attribute to the [TemplateRenderer](./src/template-renderer/index.tsx) within `src/app/[[...path]]/page.tsx` file of the frontend application.
+
+`getTemplateData` takes an async callback to get template styles and content.
+
+The default definition for `getTemplateData` function passed in `getTemplateData` attribute can be found in [@snapwp/query](../packages/query/README.md) package.
+
+Type Definition of `getTemplateData`:
+
+```typescript
+type getTemplateData = ( uri: string ) => Promise< TemplateData >;
+```
+
+Type definition of `TemplateData` can be found in [@snapwp/core](../packages/core/README.md) package.
+
 ## Contributing
 
 This package is part of [SnapWP's monorepo](https://github.com/rtCamp/snapwp) and is actively maintained by [rtCamp](https://rtcamp.com/). Packages are published to [npm](https://www.npmjs.com/) from the `packages` directory, and can be used standalone in the headless WordPress ecosystem or as part of SnapWP's framework.