Add "Related MessageSources and Examples" and change Title

Author: alaugks

README.md

@@ -1,4 +1,4 @@
-# Example: Custom JSON Spring MessageSource
+# Example: Spring MessageSource for JSON files
 
 
 This example shows how to use [spring-messagesource-json](https://github.com/alaugks/spring-messagesource-json).
@@ -21,3 +21,9 @@ docker compose restart
 
 > [!NOTE]  
 > When you restart, the JAR file is rebuilt and the Tomcat is started. This can take a few seconds.
+
+## Related MessageSources and Examples
+
+* [XLIFF MessageSource for Spring](https://github.com/alaugks/spring-messagesource-db-example)
+* [Example: Spring MessageSource for XLIFF files](https://github.com/alaugks/spring-messagesource-xliff-example)
+* [Example: Custom Database Spring MessageSource](https://github.com/alaugks/spring-messagesource-db-example)