Use latest method of adding adsense script provided by google adsense

Signed-off-by: isamrish <[email protected]>

In latest script, google adsense cliend id is being provided by data attributes

README.md

@@ -49,3 +49,5 @@ Here you place your Google Adsense tracking id.
 ### `head`
 
 Here you can define where to place the tracking script. With `head:true` it will placed in the header, with `head:false` it will placed in the body. Default is `false`.
+
+Google adsense recommends to put script in [head tag](https://support.google.com/adsense/answer/9274516).

src/gatsby-ssr.js

@@ -16,20 +16,10 @@ export const onRenderBody = (
     : setPostBodyComponents;
   return setComponents([
     <script
+      key={`gatsby-plugin-google-adsense`}
+      data-ad-client={`${pluginOptions.googleAdClientId}`}
       async
-      type="text/javascript"
       src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"
-    />,
-    <script
-      key={`gatsby-plugin-google-adsense`}
-      dangerouslySetInnerHTML={{
-        __html: `
-      (adsbygoogle = window.adsbygoogle || []).push({
-          google_ad_client: ${pluginOptions.googleAdClientId},
-          enable_page_level_ads: true
-      });
-      `
-      }}
     />
   ]);
 };