anchor.diff:  
   == Getting started
   
  -The <<xref/../../../about/spec#,spec>> library specifies the structure of data, validates or destructures it, and can generate data based on the spec. 
  +The <<xref/../../../about/spec#,spec>> library specifies the structure of data, validates or conforms it, and can generate data based on the spec. 
   
   To use spec, declare a dependency on Clojure 1.9.0 or higher:
   
  
positive.code: (configure ["-server" "foo" "-verbose" true "-user" "joe"])
  ----
  
  Here configure calls `conform` to destructure the config input. The result is either the special `::s/invalid` value or a destructured form of the result:
  
  [source,clojure]
  ----
  
negative.code: ;; 100 - failed: map?
  ----
  
  A deeper level of integration is to call conform and use the return value with destructuring to pull apart the input. This will be particularly useful for complex inputs with alternate options.
  
  Here we conform using the config specification defined above:
  
  