Revised example ApseLock README.
-Orbital Damping in the CoRoT-7 System
+Apsidal Locking of the CoRoT-7 System
=================
Overview
--------
-Orbital damping into the "fixed-point solution" in which two planets' major axes
-circulate with the same frequency.
+Demonstration of apsidal locking, in which two planets' major axes
+circulate with the same frequency as a result of tidal damping.
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**Date** 9/12/18
