Introduced directories into the wiki and added content based on my talk with Bodo and my own thoughts

error-messages/Good-error-messages.md

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+In this fire we list properties of good error messages along with (if you have it) some proof as to why it is a good property.
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+From [On Compiler Error Messages: What They _Say_ and What They _Mean_](https://onlinelibrary.wiley.com/doi/10.1155/2010/602570)
+- Say not only what the problem is but why it is there 
+- Say how you can potentially solve the error 
+- Link to docs about concepts that need to be further explained to keep error messages short
+- Don't blame the programmer 
+- Are positive 
+- use colors and stay consistent
+- avoid reference to compiler internals 
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+From [Towards Assessing the Readability of Programming Error Messages](https://dl.acm.org/doi/fullHtml/10.1145/3441636.3442320)
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+- Do not have too much jargon back to back, and link to explanations of the jargon used
+- Are not too long
+- Give relevant information 
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+Sijmen:
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+- Comes from the perspective of the user not the perspective of the compiler 
+- Are friendly 
+- assist you