Fix usage of the default role.

Doc/library/sys.rst

@@ -1100,7 +1100,7 @@ always available.
             pass
 
         # The following line will fail with a RuntimeError, because
-        # `wrapper` creates a `wrap(coro)` coroutine:
+        # ``wrapper`` creates a ``wrap(coro)`` coroutine:
         foo()
 
    See also :func:`get_coroutine_wrapper`.

Doc/library/test.rst

@@ -570,9 +570,9 @@ The :mod:`test.support` module defines the following functions:
 
 .. function:: detect_api_mismatch(ref_api, other_api, *, ignore=()):
 
-   Returns the set of attributes, functions or methods of `ref_api` not
-   found on `other_api`, except for a defined list of items to be
-   ignored in this check specified in `ignore`.
+   Returns the set of attributes, functions or methods of *ref_api* not
+   found on *other_api*, except for a defined list of items to be
+   ignored in this check specified in *ignore*.
 
    By default this skips private attributes beginning with '_' but
    includes all magic methods, i.e. those starting and ending in '__'.

Doc/whatsnew/3.5.rst

@@ -1086,7 +1086,7 @@ Changes in the Python API
 * The :mod:`socket` module now exports the CAN_RAW_FD_FRAMES constant on linux
   3.6 and greater.
 
-* The `pygettext.py` Tool now uses the standard +NNNN format for timezones in
+* The ``pygettext.py`` Tool now uses the standard +NNNN format for timezones in
   the POT-Creation-Date header.
 
 * The :mod:`smtplib` module now uses :data:`sys.stderr` instead of previous