Update README.md

Author: mikolajsp

README.md

@@ -20,6 +20,12 @@ Note that an explainer can be created for **any** survival model, using the `exp
 
 ## Installation
 
+```diff
+! Please note that that version v1.1.1 with new functionalities is still being processed by CRAN.
++ To use all functionalities, for the time being, please install the most current version from GitHub!
+```
+
+
 The package is available on [CRAN](https://cran.r-project.org/package=survex):
 
 ```r