Link of "walkthrough of the example" broken

In the main repo wiki, under [user examples](https://github.com/harfbuzz/harfbuzz/wiki#user-examples), i followed the below links to this repo and its walkthrough, but the later one is broken.

> [harfbuzz-tutorial](https://github.com/harfbuzz/harfbuzz-tutorial), along with the [walk-though accompanying that](http://booki.flossmanuals.net/text-layout-with-harfbuzz/_draft/_v/1.0/hello-world-example-walkthrough/).

I searched on the flossmanuals website but didn't find anything related to "harfbuzz". I am trying to contact them to find out if they have the article and can restore it.

Meanwhile I was wondering if you guys have the walkthrough saved at some other place too? (I am trying to integrate harfbuzz into [Organic Maps](https://github.com/organicmaps/organicmaps/issues/4281) and wanted to study and understand some examples.)

Start by checking the main repository wiki's User Examples section and the linked harfbuzz-tutorial and FLOSS Manuals walkthrough URLs. Determine whether the walkthrough exists elsewhere or can be restored; the issue is resolved when users have a working link to the accompanying walkthrough or a clear replacement location.

Do mô hình lập chỉ mục viết ra từ nội dung của issue.