anchor.diff:  
   
   ===== Logger Name
  -The **logger-name** provider auto-completes valid logger names. Typically, package and
  -class names available in the current project can be auto-completed. Specific frameworks
  -may have extra magic logger names that can be supported as well.
  +The **logger-name** provider auto-completes valid logger names and
  +<<spring-boot-features.adoc#boot-features-custom-log-groups,logger groups>>. Typically,
  +package and class names available in the current project can be auto-completed. If a
  +custom logger group is identified in the configuration, auto-completion for it should
  +be provided. Specific frameworks may have extra magic logger names that can be supported
  +as well.
   
   Since a logger name can be any arbitrary name, this provider should allow any
   value but could highlight valid package and class names that are not available in the
  
positive.code: 
  The following metadata snippet corresponds to the standard `logging.level` property. Keys
  are _logger names_, and values correspond to the standard log levels or any custom
  level.
  
  [source,json,indent=0]
  ----
  
negative.code: 			"name": "logging.level.keys",
  			"values": [
  				{
  				  "value": "root",
  				  "description": "Root logger used to assign the default logging level."
  				},
  				{
  				  "value": "sql",
  				  "description": "SQL logging groups including Hibernate SQL logger."
  				},
  				{
  				  "value": "web",
  				  "description": "Web logging groups including codecs."
  				}
  			],
  			"providers": [
  