Add configuration complexity

Author: charlax

README.md

@@ -687,6 +687,9 @@ See also the Writing section
 - [Your configs suck? Try a real programming language](https://beepb00p.xyz/configs-suck.html)
   - Most modern config formats suck
   - Use a real programming language
+- [Code rant: The Configuration Complexity Clock](https://mikehadlow.blogspot.com/2012/05/configuration-complexity-clock.html)
+  - I’m not saying that it’s never appropriate to implement complex configuration, a rules-engine or a DSL, Indeed I would jump at the chance of building a DSL given the right requirements, but I am saying that you should understand the implications and recognise where you are on the clock before you go down that route.
+  - Initially there was hope that non-technical business users would be able to use the GUI to configure the application, but that turned out to be a false hope; the mapping of business rules into the engine requires a level of expertise that only some members of the development team possess.
 
 ### Continuous Integration (CI)