anchor.diff:  *   `version` the schema version;
   *   `definition` the schema definition.
   
  -===== `DELETE /{subject}/{format}/{version}`
  +`DELETE /{subject}/{format}/{version}`
   
   Delete an existing schema by its subject, format and version.
   
  -===== `DELETE /schemas/{id}`
  +`DELETE /schemas/{id}`
   
   Delete an existing schema by its id.
   
  -===== `DELETE /{subject}`
  +`DELETE /{subject}`
   
   Delete existing schemas by their subject.
   
  
positive.code: *   `version` the schema version;
  *   `definition` the schema definition.
  
  ===== `GET /{subject}/{format}/{version}`
  
  Retrieve an existing schema by its subject, format and version.
  
  
negative.code: 
  The Schema Registry Server API consists of the following operations:
  
  `POST /`
  
  Register a new schema.
  
  