🔖 bump version to dev version 1.0.0.9000

Change-Id: I3fcc3c167b2b9be4aa316fc1cb60b37046eea31b
diff --git a/DESCRIPTION b/DESCRIPTION
index fe06506..a25074b 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: RKorAPClient
 Type: Package
 Title: 'KorAP' Web Service Client Package
-Version: 1.0.0
+Version: 1.0.0.9000
 Authors@R:
     c(person(given = "Marc",
              family = "Kupietz",