diff --git a/README.adoc b/README.adoc
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--- a/README.adoc
+++ b/README.adoc
@@ -1,12 +1,32 @@
 == Empty Repository
 
-This is just an empty repository to play around with some Diagrams-as-Code tools.
+This is just an empty repository to play around with some Docs-as-Code and Diagrams-as-Code tools.
 
-To open this repository in gitpod, just preface the URL with `gitpod.io#`.
+To open this repository you have different options:
 
-Next, gitpod will start a web based visual studio instance with everything pre-installed.
+* clone locally and use the IDE of your choice with plugins for AsciiDoc, PlantUML, draw.io and so on (we recommend IntelliJ IDEA or Visual Studio Code)
+* in gitpod: just preface the URL with `gitpod.io#`.
+* in Github Codespaces: via button "Code"
 
-Open this `README.adoc` and press `Ctrl+k` then `v` to aktivate the AsciiDoc preview.
+image::src/docs/images/codespaces.png[]
+
+Next, in gitpod and Github Codespaces there will be a web based visual studio instance with everything pre-installed.
+
+Open this `README.adoc` and press `Ctrl+k` then `v` to activate the AsciiDoc preview.
+
+=== Part I: AsciiDoc, PlantUML and draw.io
+
+For the Docs-as-Code approach open xref:src/docs/docs-as-code.adoc[]
+
+For the Diagrams-as-Code approach open xref:src/docs/diagrams-as-code.adoc[] and start hacking.
+
+Further informations:
+
+https://docs.asciidoctor.org/asciidoc/latest/syntax-quick-reference/[Ascii Doc cheat sheet]
+
+https://kroki.io/[Kroki Server]
+
+https://plantuml.com/[PlantUML]
 
 There are some german exercises which can be found at https://doctoolchain.org/empty-workshop/Uebungen.html .
 
@@ -14,7 +34,7 @@ Now open xref:src/docs/diagrams-as-code.adoc[] and start hacking.
 
 '''
 
-=== advanced
+=== Part II: full software architecture documentation with arc42 and doctToolchain
 
 To install _docToolchain_, switch to the terminal and run
 
@@ -26,11 +46,20 @@ chmod +x dtcw
 ./dtcw install doctoolchain
 ----
 
-To preview the files, start a small server from within the terminal:
+You'll find more informations at the https://doctoolchain.org/docToolchain/v2.0.x/020_tutorial/010_Install.html[docToolchain tutorial].
+
+We'll use https://arc42.org/[arc42] as template for architecture documentation and can install it as a template in docToolchain.
+
+To preview the files (e.g. html files), start a small server from within the terminal:
 
 [code, bash]
 ----
 python -m http.server 8000
 ----
 
-Gitpod will now ask you what to do with the opened port. Just click on "open in browser" and navigate through the `build` folder.
+Gitpod or Codespaces will now ask you what to do with the opened port. Just click on "open in browser" and navigate through the `build` folder.
+
+=== Practical example
+
+We'll use the sample task for the CPSA‑A examination task of https://www.isaqb.org/[iSAQB] https://www.isaqb.org/certifications/examinations/cpsa-advanced-level-examinations/[advanced level] as an example:
+https://www.isaqb.org/download/advanced-level-sample-task-of-the-cpsa-a-examination-task/?wpdmdl=11618[BigSpender]
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diff --git a/src/docs/asciidoc/index.adoc b/src/docs/asciidoc/index.adoc
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index 0000000..d3dcea2
--- /dev/null
+++ b/src/docs/asciidoc/index.adoc
@@ -0,0 +1,13 @@
+= AsciiDoc kennenlernen
+
+Probiert die folgenden Formatierungen aus. Verwendet die Dokumentation (https://docs.asciidoctor.org/asciidoc/latest/syntax-quick-reference/) die beiden Cheat Sheets, die Ordner `images` liegen.
+
+* AsciiDoc Formatierungen
+* Listen
+* Attributes
+* Bilder
+* Tabellen
+* Anchors
+* Source-Code
+* Modulare Dokumentation
+* Diagramme
diff --git a/src/docs/docs-as-code.adoc b/src/docs/docs-as-code.adoc
new file mode 100644
index 0000000..1185ec6
--- /dev/null
+++ b/src/docs/docs-as-code.adoc
@@ -0,0 +1,38 @@
+:imagesdir: images
+
+== AsciiDoc Formatierungen
+
+// Markdown, Headline, paragraph, bold, italic
+
+Headline
+
+The quick brown fox jumps over the lazy dog
+
+== Listen
+
+// normal, numbered, checkbox, css-class
+
+kuchen
+butter
+milch
+eier
+
+== Attributes
+
+== Bilder
+
+//block, inline, imagesdir
+
+== Tabellen
+
+== Anchors
+
+//xref
+
+== Source-Code
+
+//linenums, include, tags
+
+== Modulare Dokumentation
+
+//leveloffset
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