Enh for baselines

[Ducasse]

trafficstars

It is not clear how to load a group in the baseline dependency

spec
				project: 'PetitParser'
					with: [ 
						spec 
   							baseline: 'PetitParser' 
   							with: [ spec repository: 'github://moosetechnology/PetitParser:v2.2.0/src'.
								spec loads: #('Tests') ]. ];

[jecisc]

This is explained in the section https://github.com/pharo-open-documentation/pharo-wiki/blob/master/General/Baselines.md#define-external-dependencies

[Ducasse]

Ok I could not find it. May be we promote as a subsection with Loading Group in the title.