Fix docstring.

examples/convert_ieeg_to_bids.py

@@ -83,10 +83,10 @@
     elec[:, ind] = list(map(float, electrode_tsv[axis]))
 
 ###############################################################################
-# Now we make a montage stating that the iEEG contacts are in the MNI 
+# Now we make a montage stating that the iEEG contacts are in the MNI
 # coordinate system, which corresponds to the `fsaverage` subject in
 # FreeSurfer. For example, one can look at how mne-python deals with iEEG data
-# at `Working with SEEG 
+# at `Working with SEEG
 # <https://mne.tools/stable/auto_tutorials/misc/plot_seeg.html>`_
 montage = mne.channels.make_dig_montage(ch_pos=dict(zip(ch_names, elec)),
                                         coord_frame='mni_tal')