incorporate feedback from @rkingsbury

Author: janosh

pymatgen/entries/compatibility.py

@@ -826,12 +826,13 @@ class MaterialsProject2020Compatibility(Compatibility):
     Materials Project input set parameters (see pymatgen.io.vasp.sets.MPRelaxSet). Using
     this compatibility scheme on calculations with different parameters is not valid.
 
-    Note: While the correction scheme is largely composition-based, corrections applied to
-    ComputedEntry and ComputedStructureEntry differ in rare cases. This is because if
-    entry.data['oxidation_states'] is not set explicitly, the atomic distance information
-    in the structure will be used to classify O and S anions as superoxide/peroxide/oxide
-    and sulfide/polysulfide, resp. If you want the most accurate corrections possible,
-    always pass ComputedStructureEntries (unless you have pre-defined oxidation states).
+    Note: While the correction scheme is largely composition-based, the energy corrections
+    applied to ComputedEntry and ComputedStructureEntry can differ for O and S-containing
+    structures if entry.data['oxidation_states'] is not populated or explicitly set. This
+    occurs because pymatgen will use atomic distances to classify O and S anions as
+    superoxide/peroxide/oxide and sulfide/polysulfide, resp. when oxidation states are not
+    provided. If you want the most accurate corrections possible, supply pre-defined
+    oxidation states to entry.data or pass ComputedStructureEntry.
     """
 
     def __init__(