Fix doc/index.txt references to auto-generated pages

:ref:`~...` -> :ref:`...` following
  http://sphinx.pocoo.org/_sources/contents.txt

diff --git a/doc/index.txt b/doc/index.txt
index 2225fcccfc2695fd3e6c44f952c4ab520afb2167..140c38d731452a8fe52b8312265fc0677493117c 100644 (file)
--- a/doc/index.txt
+++ b/doc/index.txt
@@ -35,9 +35,9 @@ Contents:
 Indices and tables
 ==================
 
-* :ref:`~genindex`
-* :ref:`~modindex`
-* :ref:`~search`
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`
 
 Publications
 ============