Update WebViewManager.cs captureSnapshot - remark

Author: mlipok

src/WebViewManager.cs

@@ -1129,7 +1129,8 @@ public string ExportPageData(int format, string filePath)
                     }
                     else if (format == 1) // MHTML Snapshot
                     {
-                        var task = _webView.CoreWebView2.CallDevToolsProtocolMethodAsync("Page.captureSnapshot", "{}");
+                        /// parameters description can be found here:  https://github.com/ChromeDevTools/devtools-protocol/blob/master/json/browser_protocol.json
+						var task = _webView.CoreWebView2.CallDevToolsProtocolMethodAsync("Page.captureSnapshot", "{}");
                         string json = WaitAndGetResult(task);
                         if (!string.IsNullOrEmpty(json))
                         {
@@ -1601,4 +1602,5 @@ private string CleanJsString(string input)
         }
         #endregion
     }
-}
+
+}