Apply suggestions from code review

Co-authored-by: Tim Hoffmann <2836374+timhoffm@users.noreply.github.com>

Author: mathause

doc/users/next_whats_new/mpl_toolkit_colorbar_pad.rst

@@ -2,5 +2,5 @@ Fix padding of single colorbar for ``ImageGrid``
 ------------------------------------------------
 
 ``ImageGrid`` with ``cbar_mode="single"`` no longer adds the ``axes_pad`` between the
-axes and the colorbar for thr ``cbar_location`` left and bottom. Add required space
-using `cbar_pad` instead.
+axes and the colorbar for ``cbar_location`` "left" and "bottom". If desired, add additional spacing
+unsing ``cbar_pad``.

lib/mpl_toolkits/axes_grid1/axes_grid.py

@@ -360,8 +360,8 @@ def __init__(self, fig,
             Padding between the image axes and the colorbar axes.
 
             .. versionchanged:: 3.10
-                `cbar_mode="single"` no longer adds the `axes_pad` between the axes and
-                the colorbar if the `cbar_location` is `"left"` or `"bottom"`
+                ``cbar_mode="single"`` no longer adds *axes_pad* between the axes
+                and the colorbar if the *cbar_location* is "left" or "bottom".
 
         cbar_size : size specification (see `.Size.from_any`), default: "5%"
             Colorbar size.