Bump to v0.6.0

Author: lcbrooks

DESCRIPTION

@@ -1,7 +1,7 @@
 Type: Package
 Package: epiprocess
 Title: Tools for basic signal processing in epidemiology
-Version: 0.5.0.9999
+Version: 0.6.0
 Authors@R: c(
     person("Jacob", "Bien", role = "ctb"),
     person("Logan", "Brooks", role = "aut"),

NEWS.md

@@ -1,8 +1,8 @@
-# epiprocess 0.5.0.9999 (development version)
+# epiprocess 0.6.0
 
 Note that `epiprocess` uses the [Semantic Versioning
-("semver")](https://semver.org/) scheme for all release versions, but not for
-development versions. A ".9999" suffix indicates a development version.
+("semver")](https://semver.org/) scheme for all release versions, but any
+inter-release development versions will include an additional ".9999" suffix.
 
 ## Breaking changes: