Update readme.txt with current links

src/dist/readme.txt

@@ -6,9 +6,9 @@ https://jira.springsource.org/browse/SPR
 
 Please consult the documentation located within the 'docs/spring-framework-reference'
 directory of this release and also visit the official Spring Framework home at
-http://www.springsource.org/spring-framework
+http://projects.spring.io/spring-framework/
 
 There you will find links to the forum, issue tracker, and other resources.
 
-See https://github.com/SpringSource/spring-framework#readme for additional
+See https://github.com/spring-projects/spring-framework#readme for additional
 information including instructions on building from source.