Clarify "SMPTE timecode" in Python doc string

Author: jminor

src/py-opentimelineio/opentime-bindings/opentime_rationalTime.cpp

@@ -105,7 +105,7 @@ For example, the duration of a clip from frame 10 to frame 15 is 6 frames. Resul
         .def_static("is_valid_timecode_rate", &RationalTime::is_valid_timecode_rate, "rate"_a,
             "Deprecated. Please use `is_smpte_timecode_rate` instead. This function will be removed in a future release.")
         .def_static("is_smpte_timecode_rate", &RationalTime::is_smpte_timecode_rate, "rate"_a,
-            "Returns true if the rate is valid for use with timecode.")
+            "Returns true if the rate is valid for use with SMPTE timecode.")
         .def_static("nearest_valid_timecode_rate", &RationalTime::nearest_valid_timecode_rate, "rate"_a,
             "Deprecated. Please use `nearest_smpte_timecode_rate` instead. This function will be removed in a future release.")
         .def_static("nearest_smpte_timecode_rate", &RationalTime::nearest_smpte_timecode_rate, "rate"_a,