docs: add information about the pack to README

README.md

-# Brand spanking new Anki Pack
-Hi, do you want to build a new Anki pack? You can start with this repository!
+# HSK (Hanyu Shuiping Kaoshi)
+Vocabulary to prepare for HSK exams.
 
-If you want to learn, not create new content, see the user guide in
-[English](https://gitlab.phaidra.org/kartenaale/getting-started-with-anki/-/blob/main/GUIDE.md)
-or
-[German](https://gitlab.phaidra.org/kartenaale/getting-started-with-anki/-/blob/main/ANLEITUNG.md).
-
-## First-time setup for a new project
-Create a
-[new project](https://gitlab.phaidra.org/projects/new?namespace_id=2286#import_project)
-in the _Anki Packs_ namespace and choose _Repository by URL_ with this repo:
-```
-https://gitlab.phaidra.org/kartenaale/templates/anki-pack.git
-```
-
-This step will also clone this README. You can change it later to remove this
-section and tell your users something about your pack instead.
-
-Next, enable Gitlab CI for your project. With this feature, your new content
-will produce Anki packages on Merge Requests and on the main branch. To enable,
-open _Settings_ in the new Gitlab project and expand
-_Visibility, project features, permissions_. _CI/CD_ under _Repository_ should
-be _enabled_. Customize Merge Requests and other settings to your liking (
-_Pipelines must succeed_ is highly recommended).
+The content in the cards has been provided by _Konfuzius Institut Leipzig_.
+Automatic translations to traditional characters have been added on top (and
+may not be reliable).
 
-*Everything below this point is not starter-project-specific, you may want to keep it*
+Vocabulary is available in _English_ for all HSK levels. There is a separate
+pack for _German_, which covers HSK1–HSK4.
 
 ## Importing the pack to your phone or PC
-Open _Deployments | Releases_ on the left, then click _Browse all APKGS…_ on
-the newest release. There, click an APKG, download it, and import into Anki.
+Open
+[Deployments | Releases](https://gitlab.phaidra.org/kartenaale/packs/hsk/-/releases)
+on the left, then click _Browse all APKGS…_ on the newest release. There, click
+an APKG, download it, and import into Anki.
 
 If you are completely new to Anki and feel a bit lost, check out the user guide
 in