updated NEWS and bumped version number

DESCRIPTION

 Package: treediff
 Title: Testing Differences Between Families of Trees
-Version: 0.2
-Date: 2023-05-23
+Version: 0.2.1
+Date: 2024-02-11
 Authors@R: 
     c(person("Nathalie", "Vialaneix", , "nathalie.vialaneix@inrae.fr", 
              role = c("aut", "cre"), 
@@ -10,7 +10,7 @@ Authors@R:
       person("Marie", "Chavent", , "marie.chavent@u-bordeaux.fr", role = "aut"),
       person("Sylvain", "Foissac", , "sylvain.foissac@inrae.fr", role = "aut"),
       person("Pierre", "Neuvial", , "pierre.neuvial@math.univ-toulouse.fr", 
-             role = "aut"),
+             role = "aut", comment = c(ORCID = "0000-0003-3584-9998")),
       person("Nathanael", "Randriamihamison", , , role = "aut"))
 Description: Perform test to detect differences in structure between families of
              trees. The method is based on cophenetic distances and aggregated

NEWS.md

+# Version 0.2.1 [2024-02-11]
+
+## Misc
+
+* Fixed a problem in documentation
+* Added citation of the published method
+
 # Version 0.2 [2023-05-23]
 
 ## New features