Doc: fix default role usage (except in unittest mock docs)
diff --git a/Doc/tutorial/inputoutput.rst b/Doc/tutorial/inputoutput.rst
index b3bf0ef..6f9c99d 100644
--- a/Doc/tutorial/inputoutput.rst
+++ b/Doc/tutorial/inputoutput.rst
@@ -323,8 +323,8 @@
18
``f.tell()`` returns an integer giving the file object's current position in the file
-represented as number of bytes from the beginning of the file when in `binary mode` and
-an opaque number when in `text mode`.
+represented as number of bytes from the beginning of the file when in binary mode and
+an opaque number when in text mode.
To change the file object's position, use ``f.seek(offset, from_what)``. The position is computed
from adding *offset* to a reference point; the reference point is selected by