Fix a simple typo (#14785)

Author: dodysw

pandas/core/ops.py

@@ -421,7 +421,7 @@ def _validate(self, lvalues, rvalues, name):
 
             # if tz's must be equal (same or None)
             if getattr(lvalues, 'tz', None) != getattr(rvalues, 'tz', None):
-                raise ValueError("Incompatbile tz's on datetime subtraction "
+                raise ValueError("Incompatible tz's on datetime subtraction "
                                  "ops")
 
         elif ((self.is_timedelta_lhs or self.is_offset_lhs) and

pandas/io/tests/test_pytables.py

@@ -1947,7 +1947,7 @@ def test_append_raise(self):
             self.assertRaises(TypeError, store.append,
                               'df', Series(np.arange(10)))
 
-            # appending an incompatbile table
+            # appending an incompatible table
             df = tm.makeDataFrame()
             store.append('df', df)