Fix JSONSchema version before it changes a lot

Author: noha

source/BaselineOfOpenAPI.package/BaselineOfOpenAPI.class/instance/jsonSchema..st

@@ -2,7 +2,7 @@ baselines
 jsonSchema: spec
 	spec 
 		baseline: 'JSONSchema' with: [ 
-			spec repository: 'github://zweidenker/JSONSchema/source' ].
+			spec repository: 'github://zweidenker/JSONSchema:0.3/source' ].
 	spec 
 		project: 'JSONSchema Core' copyFrom: 'JSONSchema' with: [
 			spec loads: 'Core'];