code: public List<StepCandidate> prioritise(String stepAsText, List<StepCandidate> candidates) {
          return prioritisingStrategy.prioritise(stepAsText, candidates);
      }
docs: Prioritises the list of step candidates that match a given step.
  
  @param stepAsText
  the textual step to match
  @param candidates
  the List of StepCandidate
  @return The prioritised list according to the
  {@link PrioritisingStrategy}.