Fix naming in README

Co-authored-by: Chad Mitchell <46825199+cemitch99@users.noreply.github.com>

Author: ax3l

examples/fodo_channel_restart/README.rst

@@ -3,7 +3,7 @@
 FODO Channel Restart
 ====================
 
-This example takes the last output of the :ref:`FODO Channel <examples-fodo-channel>` example, loads the beam back into a new simulation and continues the simulation for another 100 turns.
+This example takes the last output of the :ref:`FODO Channel <examples-fodo-channel>` example, loads the beam back into a new simulation and continues the simulation for another 100 FODO periods.
 
 The second moments of the particle distribution after the FODO cell should coincide with the second moments of the particle distribution before the FODO cell, to within the level expected due to noise due to statistical sampling.