docs(customization.md): add feature notes

Author: AtticusZeller

docs/customization.md

@@ -7,7 +7,8 @@ The basic steps are:
 
 1. Define your custom committing or bumping rules in the configuration file.
 2. Declare `name = "cz_customize"` in your configuration file, or add `-n cz_customize` when running commitizen.
-
+!!! NOTE
+    Customize will inherit default setting(`ConventionalCommitsCz`) now.
 Example:
 
 ```toml