Update methods list for k6 browser Request type

Author: andrewslotin

src/data/markdown/docs/02 javascript api/07 k6-experimental/01 browser/11-request.md

@@ -18,8 +18,10 @@ excerpt: "Browser module: Request Class"
 | <a href="https://playwright.dev/docs/api/class-request#request-method" target="_blank" >request.method()</a> | - |
 | <a href="https://playwright.dev/docs/api/class-request#request-post-data" target="_blank" >request.postData()</a> | - |
 | <a href="https://playwright.dev/docs/api/class-request#request-post-data-buffer" target="_blank" >request.postDataBuffer()</a> | - |
+| <a href="https://playwright.dev/docs/api/class-request#request-redirected-from" target="_blank" >request.redirectedFrom()</a> | - |
+| <a href="https://playwright.dev/docs/api/class-request#request-redirected-to" target="_blank" >request.redirectedTo()</a> | - |
 | <a href="https://playwright.dev/docs/api/class-request#request-resource-type" target="_blank" >request.resourceType()</a> | - |
 | <a href="https://playwright.dev/docs/api/class-request#request-response" target="_blank" >request.response()</a> | - |
-| <a href="https://playwright.dev/docs/api/class-request#request-sizes" target="_blank" >request.sizes()</a> | - |
+| <a href="https://playwright.dev/docs/api/class-request#request-sizes" target="_blank" >request.size()</a> | Unlike Playwright this method returns an object containing the sizes of request headers and body, e.g. `{ headers: 100, body: 200 }` |
 | <a href="https://playwright.dev/docs/api/class-request#request-timing" target="_blank" >request.timing()</a> | - |
 | <a href="https://playwright.dev/docs/api/class-request#request-url" target="_blank" >request.url()</a> | - |