Update DESCRIPTION and Rbuildignore

.Rbuildignore

@@ -3,3 +3,7 @@
 ^\.github$
 ^doc$
 ^Meta$
+^.gitlab-ci.yml
+^README.Rmd
+^input
+^smidm.Rproj
\ No newline at end of file

DESCRIPTION

@@ -12,7 +12,7 @@ Authors@R: c(
   person("Rieke", "Alpers", role = c("aut"),
          email = "rieke.alpers@mevis.fraunhofer.de"))
 Description: Implements statistical models and visualizations to support decision making by health authorities w.r.t. the COVID-19 pandemic. 
-License: BSD-3-Clause + file LICENSE
+License: BSD_3_clause + file LICENSE
 Encoding: UTF-8
 LazyData: true
 Roxygen: list(markdown = TRUE)
@@ -20,14 +20,16 @@ RoxygenNote: 7.1.2
 Imports:
     dplyr,
     extraDistr,
-    tidyr,
-    stats,
-    hdrcde
+    stats
 Suggests: 
     testthat (>= 3.0.0),
     covr,
     xml2,
     knitr,
-    rmarkdown
+    rmarkdown,
+	tidyr,
+	hdrcde,
+	ggplot2,
+	scales
 Config/testthat/edition: 3
 VignetteBuilder: knitr