Update release notes wrt #123

Author: cowtowncoder

blackbird/README.md

@@ -32,7 +32,7 @@ Blackbird is available on Maven Central as of 2.12.0:
 
 ```xml
 <dependency>
-  <groupId>com.fasterxml.jackson.modules</groupId>
+  <groupId>com.fasterxml.jackson.module</groupId>
   <artifactId>jackson-module-blackbird</artifactId>
 </dependency>
 ```

release-notes/VERSION-2.x

@@ -16,6 +16,8 @@ Modules:
 
 #120: Afterburner does not support the new CoercionConfig
  (reported by Carter K)
+#123: BlackBird not support fluent setter
+ (reported by wujimin@github)
 
 2.12.0 (29-Nov-2020)