Fix links.

Author: ionelmc

CHANGELOG.rst

@@ -277,8 +277,8 @@ Changelog
 ------------------
 
 * Fixed ``RecursionError`` that can occur when using
-  `cleanup_on_signal <https://pytest-cov.readthedocs.io/en/latest/subprocess-support.html#if-you-got-custom-signal-handling>`__ or
-  `cleanup_on_sigterm <https://pytest-cov.readthedocs.io/en/latest/subprocess-support.html#if-you-got-custom-signal-handling>`__.
+  `cleanup_on_signal <https://pytest-cov.readthedocs.io/en/v2.8.0/subprocess-support.html#if-you-got-custom-signal-handling>`__ or
+  `cleanup_on_sigterm <https://pytest-cov.readthedocs.io/en/v2.8.0/subprocess-support.html#if-you-got-custom-signal-handling>`__.
   See: `#294 <https://github.com/pytest-dev/pytest-cov/issues/294>`_.
   The 2.7.x releases of pytest-cov should be considered broken regarding aforementioned cleanup API.
 * Added compatibility with future xdist release that deprecates some internals