Add warning about permanently ongoing API changes

Change-Id: I3b842d5473f7ce9d2d31ac8d5ecd3fec0f58faf4
diff --git a/Readme.md b/Readme.md
index e75c432..1db9fd7 100644
--- a/Readme.md
+++ b/Readme.md
@@ -6,7 +6,7 @@
 
 Simple R package to access the [web service API](https://github.com/KorAP/Kustvakt/wiki) of the [KorAP Corpus Analysis Platform](http://korap.ids-mannheim.de/) devloped at the [IDS Mannheim](http://ids-mannheim.de/)
 
-**! This packgage is in its early stages and not stable yet! Use it on your own risk!**
+**This packgage is in its early stages and not stable yet! In particular, please expect that, at this early stage, objects, functions, parameters as well as their names or identifiers will still change continuously without any notification. Use it on your own risk!**
 
 ## Getting started