Attempt to fix relative link

Author: ncoghlan

source/guides/single-sourcing-package-version.rst

@@ -1,7 +1,7 @@
 :orphan:
 
 .. meta::
-   :http-equiv=refresh: 0; url=../discussions/single-source-version/
+   :http-equiv=refresh: 0; url=../../discussions/single-source-version/
 
 Redirecting stale single-source package version link...