texts for assumptions, prereqs, knowledge level

source/3-tutorials/tutorial-guidelines.html.md

@@ -10,6 +10,23 @@ title: Tutorials Writing Guidelines
 
 ## Assumptions, Prerequisites & Knowledge level
 
+### Assumptions: 
+Every tutorial starts from with certain assumption what a reader knows / wants to learn / tools that are available. 
+Try to make these assumptions clear, but do not state the obvious: 
+
+* use a clear title
+
+### Toolset/Prereqs: 
+What is the goal of the tutorial? Anything that is not the goal must be done **before** as to not break the flow of the tutorial. Put sucht things in front of the actual tutorial. 
+
+Use: 
+
+- list / checklist
+- directly link to tool websites
+
+### Knowledge Level: 
+If you presume a certain level of knowledge you should mention this before the user starts. Nothing is worse than to start but not be able to finish. 
+
 ## Code
 
 ## Mixed media