Fixing some sphinx inline directives - detected using ``make check``.
diff --git a/Doc/library/concurrent.futures.rst b/Doc/library/concurrent.futures.rst
index e17e589..a7a2c39 100644
--- a/Doc/library/concurrent.futures.rst
+++ b/Doc/library/concurrent.futures.rst
@@ -283,12 +283,12 @@
        before executing the work associated with the :class:`Future` and by unit
        tests.
 
-       If the method returns `False` then the :class:`Future` was cancelled,
+       If the method returns ``False`` then the :class:`Future` was cancelled,
        i.e. :meth:`Future.cancel` was called and returned `True`.  Any threads
        waiting on the :class:`Future` completing (i.e. through
        :func:`as_completed` or :func:`wait`) will be woken up.
 
-       If the method returns `True` then the :class:`Future` was not cancelled
+       If the method returns ``True`` then the :class:`Future` was not cancelled
        and has been put in the running state, i.e. calls to
        :meth:`Future.running` will return `True`.