docs: update version number and description

DESCRIPTION

@@ -1,8 +1,8 @@
 Package: cfda
 Type: Package
 Title: Categorical Functional Data Analysis
-Version: 0.9.11
-Date: 2021-12-07
+Version: 0.9.12
+Date: 2022-03-07
 Authors@R: c(person("Cristian", "Preda", role = "aut", email = "[email protected]"),
              person("Quentin", "Grimonprez", role = c("aut", "cre"), email = "[email protected]"),
              person("Vincent", "Vandewalle", role = "ctb", email = "[email protected]"))

NEWS

@@ -0,0 +1,18 @@
+v0.9.12 2022-03-07
+- fix bug when ids are not in alphabetical order #16
+- add warning when an individual has duplicated time values
+- correct statetable doc
+- fix disappeared progress bars
+- predict manages NULL as newdata
+
+v0.9.10 2021-12-07
+- fix DOI
+
+v0.9.10 2021-12-06
+- add ggplot2 in depends
+- add citation
+- fix default values in generate_Markov
+- run styler
+
+v0.9.9 2021-02-12
+- on CRAN, now