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+
+- [mermaid](mermaid.md)
+- [tables](tables.md)
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+
+editor see https://mermaid.live/
+
+## example for mindmap
+
+```mermaid
+mindmap
+  root((mindmap))
+    Origins
+      Long history
+      ::icon(fa fa-book)
+      Popularisation
+        British popular psychology author Tony Buzan
+    Research
+      On effectivness<br/>and features
+      On Automatic creation
+        Uses
+            Creative techniques
+            Strategic planning
+            Argument mapping
+    Tools
+      Pen and paper
+      Mermaid
+```
+
+## plugin required in visual studio
+
+- vscode-mermaid-syntax-highlight
+- Markdown All in One
+- Markdown Preview Enhanced
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+# Tables
+
+- see https://www.tablesgenerator.com/markdown_tables
+
+