Use plural only for variables, members etc., maybe not for databases (#109)

Author: HrFlorianHoffmann

clean-abap/CleanABAP.md

@@ -404,6 +404,11 @@ for example `country` for a "table of countries".
 Common tendency in the outside world is to use the plural for lists of things.
 We therefore recommend to prefer `countries` instead.
 
+> This advice primarily targets things like variables and properties.
+> For development objects, there may be competing patterns
+> that also make sense, for example the widely used convention
+> to name database tables ("transparent tables") in singular.
+
 > Read more in _Chapter 2: Meaningful Names: Use Intention-Revealing Names_ of [Robert C. Martin's _Clean Code_].
 
 ### Use pronounceable names