bpo-43774: Add more links to configure options (GH-25363)

diff --git a/Doc/library/decimal.rst b/Doc/library/decimal.rst
index 35a263a..e759c5c 100644
--- a/Doc/library/decimal.rst
+++ b/Doc/library/decimal.rst
@@ -1484,8 +1484,8 @@
 
 .. data:: HAVE_CONTEXTVAR
 
-   The default value is ``True``. If Python is :option:`configured with
-   --without-decimal-contextvar <--without-decimal-contextvar>`,
+   The default value is ``True``. If Python is :option:`configured using
+   the --without-decimal-contextvar option <--without-decimal-contextvar>`,
    the C version uses a thread-local rather than a coroutine-local context and the value
    is ``False``.  This is slightly faster in some nested context scenarios.