Added plantUML description; fixed some typos

doc/Documentation.md

@@ -6,6 +6,8 @@
 - [Overview](#overview)
 - [doxygen](#doxygen)
 - [Markdown](#markdown)
+- [PlantUML](#plantuml)
+- [References](#references)
 
 ---
 
@@ -21,7 +23,7 @@ Adding doxygen language support could be done by installing the [doxygen extensi
 
 To support you with automated comment templates in your code, the [Doxygen Documentation Generator](https://marketplace.visualstudio.com/items?itemName=cschlosser.doxdocgen) is very useful.
 
-![Doxygen in action](images/doxygen.png)
+![Doxygen in action](../images/doxygen.png)
 
 To install doxygen:
 
@@ -31,20 +33,33 @@ For enhanced visualization in doxygen, install graphviz.
 
     apt install graphviz
 
-If you like easy visualization of customizable sequence charts, maybe mscgen is the right thing for you. You can install it with:
-
-    apt install mscgen
-
 To run doxygen from VS Code, the [Doxygen Runner extension](https://marketplace.visualstudio.com/items?itemName=betwo.vscode-doxygen-runner) is helpful.
 
 Simply install the extension, add a `Doxyfile` to your workspace folder (e.g. with `doxygen -g`) and change the `settings.json` accordingly.
 
     "doxygen_runner.configuration_file_override": "${workspaceFolder}/Doxyfile"
 
-Finally you can start doxygen via the command palette (`Ctrl+Shift+P`), selecting **Generate Doxygen generation**.
+Finally you can start doxygen via the command palette (`Ctrl+Shift+P`), selecting **Generate Doxygen documentation**.
 
 ---
 
 ## Markdown
 
 There are several markdown related extensions available. But currently a very nice one is [Markdown All in One](https://marketplace.visualstudio.com/items?itemName=yzhang.markdown-all-in-one#table-of-contents). It supports shortcuts, automated creation of TOCs and many more.
+
+---
+
+## PlantUML
+
+If you like to enrich your documentation with nice UML diagrams, the [PlantUML](https://marketplace.visualstudio.com/items?itemName=jebbs.plantuml) extension is the right choice. It supports you with syntax highlighting of plantUML files and a very cool preview windows that displays your diagrams during creation. To show the preview on a pure plantUML file or embedded within doxygen/markdown use the command palette (`Ctrl+Shift+P`) and run  **PlantUML: Preview Current Diagram**. The diagrams could also be exported in various formats.
+
+![PlantUML in action](../images/plantUML.gif)
+
+As mentioned, it could also be integrated with doxygen. The diagrams are automatically generated and included in your documentation then.
+
+---
+
+## References
+
+- Official Doxygen site: [https://www.doxygen.nl/index.html](https://www.doxygen.nl/index.html)
+- PlantUML Website: [https://plantuml.com](https://plantuml.com)

doc/plantuml_test.pu

@@ -0,0 +1,6 @@
+@startuml
+
+actor Me
+Me -> You : show PlantUML
+You -> Other : look, that's nice
+@enduml