update package title and description in DESCRIPTION

DESCRIPTION

@@ -1,5 +1,5 @@
 Package: simulist
-Title: Tools to Simulate Line List and Contacts Data
+Title: Simulate Disease Outbreak Line List and Contacts Data
 Version: 0.2.0.9000
 Authors@R: c(
     person("Joshua W.", "Lambert", , "joshua.lambert@lshtm.ac.uk", role = c("aut", "cre", "cph"),
@@ -15,8 +15,11 @@ Authors@R: c(
     person("Chris", "Hartgerink", , "chris@data.org", role = "rev",
            comment = c(ORCID = "0000-0003-1050-6809"))
   )
-Description: Tools to simulate raw case data for an epidemic in the form
-    of line lists and contacts using a branching process.
+Description: Tools to simulate realistic raw case data for an epidemic in
+    the form of line lists and contacts using a branching process.
+    Simulated outbreaks are parameterised with epidemiological parameters
+    and can have age structured populations, age-stratified
+    hospitalisation and death risk and time-varying case fatality risk.
 License: MIT + file LICENSE
 URL: https://github.com/epiverse-trace/simulist,
     https://epiverse-trace.github.io/simulist/
@@ -32,14 +35,14 @@ Imports:
 Suggests: 
     bookdown,
     dplyr,
-    tidyr,
     epicontacts (>= 1.1.3),
     ggplot2,
     incidence2 (>= 2.1.0),
     knitr,
     rmarkdown,
     spelling,
-    testthat (>= 3.0.0)
+    testthat (>= 3.0.0),
+    tidyr
 VignetteBuilder: 
     knitr
 Remotes: