README: note the docker image purpose

diff --git a/README.md b/README.md
index a03bf5adb12d5bf344b8a2062cdbafb8c1ebfa50..b8f03c12269b1d77a1b11eb84f8b15931d80e4d8 100644 (file)
--- a/README.md
+++ b/README.md
@@ -47,6 +47,7 @@ $ docker run -it cznic/knot-resolver
 ```
 
 See the build page [hub.docker.com/r/cznic/knot-resolver](https://hub.docker.com/r/cznic/knot-resolver/) for more information and options.
+The images are meant as an easy way to try knot-resolver, and they're not designed for production use.
 
 ### Running