anchor.diff:    "spec": {
       "triggers": [ <2>
         {
  -        "type": "Github",
  +        "type": "GitHub",
           "github": {
             "secret": "secret101"
           }
  
positive.code: 
  ----
  {
    "type": "generic",
    "generic": {
      "secret": "secret101"
    }
  
negative.code: == Defining a BuildConfig
  
  A build configuration describes a single build definition and a set of
  link:#build-triggers[triggers] for when a new build should be created.
  
  A build configuration is defined by a `*BuildConfig*`, which is a REST object
  that can be used in a POST to the API server to create a new instance. The
  