Improve docfx_project/examples/ReuseChrome.md

[KyleC69]

In the provided example the BrowserFetcher is instantiated using the using clause. In version 18.0 of PuppeteerSharp that class no longer implements IDisposable. This is the code used. IDE:VisualCode v.189.1

  ` var downloadPath = "/home/apollo/Apps/Browser/Chromium";
    var bo = new BrowserFetcherOptions { Path = downloadPath };
    using var browserFetcher = new BrowserFetcher(bo);
    var browser = await browserFetcher.DownloadAsync();`

[kblok]

Thank you for reporting this @KyleC69!