Update README.md

Author: CelliesProjects

README.md

@@ -10,7 +10,7 @@ An esp32 library to get the moon phase angle and percentage of the moon that is
 
 #### Functions:
 
-- `getPhase()` Get the current moon phase. (First set freeRTOS system time)
+- `getPhase()` Get the current moon phase. (First set freeRTOS system time - see the esp32-sntp example)
 
 - `getPhase( time_t t )` Get the moon phase at time `t`.