improve html crawler keyword

docs/examples/http_crawler.mdx

@@ -7,7 +7,7 @@ import RunnableCodeBlock from '@site/src/components/RunnableCodeBlock';
 import ApiLink from '@site/src/components/ApiLink';
 import HttpCrawlerSource from '!!raw-loader!roa-loader!./http_crawler.ts';
 
-This example demonstrates how to use <ApiLink to="http-crawler/class/HttpCrawler">`HttpCrawler`</ApiLink> to crawl a list of URLs from an external file, load each URL using a plain HTTP request, and save HTML.
+This example demonstrates how to use <ApiLink to="http-crawler/class/HttpCrawler">`HttpCrawler`</ApiLink> to build a crawler that crawls a list of URLs from an external file, load each URL using a plain HTTP request, and save HTML.
 
 <RunnableCodeBlock className="language-js" type="cheerio">
 	{HttpCrawlerSource}

docs/examples/http_crawler.ts

@@ -35,8 +35,8 @@ const crawler = new HttpCrawler({
         // Store the results to the dataset. In local configuration,
         // the data will be stored as JSON files in ./storage/datasets/default
         await Dataset.pushData({
-            url: request.url,
-            body,
+            url: request.url, // URL of the page
+            body,  // HTML code of the page
         });
     },
 
@@ -47,6 +47,7 @@ const crawler = new HttpCrawler({
 });
 
 // Run the crawler and wait for it to finish.
+// It will crawl a list of URLs from an external file, load each URL using a plain HTTP request, and save HTML
 await crawler.run([
     'https://crawlee.dev',
 ]);