org-papers.org: Fix links to documentation

Thanks to Brian Powell for reporting this.

org-papers.org

@@ -10,7 +10,8 @@
 This file contains a list of scientific papers that are about Org-mode
 or mention Org-mode in any special way.
 
-For general Org-mode documentation, please refer to [[http://orgmode.org/org-mode-documentation.html][Org-Mode: Documentation]].
+For general Org-mode documentation, please refer to the [[http://orgmode.org/manual/][Org-Mode
+Manual]].
 
 * Papers About Org-mode
 
@@ -38,7 +39,7 @@ For general Org-mode documentation, please refer to [[http://orgmode.org/org-mod
 
 * Other Pages with Links to Papers
 
-- [[http://orgmode.org/org-mode-documentation.html][Org-Mode: Documentation]]
+- [[http://orgmode.org/manual/][Org-Mode: online manual]]
 - [[http://orgmode.org/worg/org-contrib/babel/uses.html#sec-6][Reproducible
  Research Papers Prepared with Org-mode]]
 - Search results for Org-mode: