diff --git a/README.md b/README.md
index c6fd1a5..0f5f7ff 100755
--- a/README.md
+++ b/README.md
@@ -1,7 +1,9 @@
 # mx-puppet-vk
-This is a Matrix <-> VK bridge based on [mx-puppet-bridge](https://github.com/Sorunome/mx-puppet-bridge).
+This is a Matrix <-> VK bridge based on [mx-puppet-bridge](https://github.com/Sorunome/mx-puppet-bridge) and [VK-IO](https://github.com/negezor/vk-io).
 
-It is it early development and should be considered as proof-of-concept.
+It is in early development and should be considered as proof-of-concept. Right now it logs message data when log level includes "info" level.
+
+Group chats are not properly tested.
 
 ## Installation
 ```bash
diff --git a/sample.config.yaml b/sample.config.yaml
index 71b45bd..d6e7e2f 100755
--- a/sample.config.yaml
+++ b/sample.config.yaml
@@ -58,7 +58,7 @@ logging:
       # Log level for this file
       # Allowed values starting with most verbose:
       # silly, debug, verbose, info, warn, error
-      level: info
+      level: warn
       # Date and time formatting
       datePattern: YYYY-MM-DD
       # Maximum number of logs to keep.