updated CHANGELOG and __pkginfo__.py files

CHANGELOG

+version 0.3.0
+-------------
+* CHANGED   merged parameters templates into environment
+
 version 0.2.1
 -------------
 * CHANGED   the -v option can now be used without -t

src/packme/__pkginfo__.py

@@ -20,7 +20,7 @@ __status__ : str = "Prototype"
 
 __url__ : str = "https://code.ill.fr/panosc/data-analysis-services/packme"
 
-__version__ : str = "0.2.1"
+__version__ : str = "0.3.0"
 
 __long_description_content_type__ : str ="text/markdown"