diff --git a/IPython/core/completer.py b/IPython/core/completer.py
index d8fcc0d..57bca0e 100644
--- a/IPython/core/completer.py
+++ b/IPython/core/completer.py
@@ -406,7 +406,7 @@ def rectify_completions(text: str, completions: _IC, *, _debug=False)->_IC:
 
     :any:`jedi.api.classes.Completion` s returned by Jedi may not have the same start and end, though
     the Jupyter Protocol requires them to behave like so. This will readjust
-    the completion to have the same ``start`` and ``end` by padding both
+    the completion to have the same ``start`` and ``end`` by padding both
     extremities with surrounding text.
 
     During stabilisation should support a ``_debug`` option to log which
@@ -744,8 +744,8 @@ def cursor_to_position(text:int, line:int, column:int)->int:
     Convert the (line,column) position of the cursor in text to an offset in a
     string.
 
-    Parameter
-    ---------
+    Parameters
+    ----------
 
     text : str
         The text in which to calculate the cursor offset
@@ -775,8 +775,8 @@ def position_to_cursor(text:str, offset:int)->(int, int):
 
     Position should be a valid position in ``text``.
 
-    Parameter
-    ---------
+    Parameters
+    ----------
 
     text : str
         The text in which to calculate the cursor offset
diff --git a/IPython/terminal/shortcuts.py b/IPython/terminal/shortcuts.py
index 22ad111..e626ccf 100644
--- a/IPython/terminal/shortcuts.py
+++ b/IPython/terminal/shortcuts.py
@@ -21,6 +21,7 @@ from prompt_toolkit.key_binding.bindings.completion import display_completions_l
 
 from IPython.utils.decorators import undoc
 
+@undoc
 @Condition
 def cursor_in_leading_ws(cli):
     before = cli.application.buffer.document.current_line_before_cursor