Fix version number again to 0.5.0

Change-Id: Id7bd6d1de279104a6e1eada1517f8a2e54a33521
diff --git a/DESCRIPTION b/DESCRIPTION
index 71e8e59..a8fe79d 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: idsThemeR
 Type: Package
 Title: Plot themes for the Leibniz Institute for the German Language (IDS)
-Version: 0.5
+Version: 0.5.0
 Authors@R:
     c(person(given = "Marc",
              family = "Kupietz",