Adjust data end year

README.md

@@ -5,7 +5,7 @@ Moon phase viewer, includes Lunar phase information and eclipse data.
 
 The Moon Activity provides a graphical representation of the current Lunar phase, and a range of common astronomical information including, phase, Julian date, Moon age, Lunation, surface visibility, selenographic terminator longitude (position of shadow on Moon's surface), next Full Moon, next New Moon, next Lunar eclipse, next Solar eclipse. The graphical image can be generated for Northern or Southern hemisphere viewing locations, and a latitude/longitude grid can be added for surface feature reference.
 
-This activity does not require internet access to work, and will show reasonably accurate information (within an error of about 60 seconds), up until the end of 2018.
+This activity does not require internet access to work, and will show reasonably accurate information (within an error of about 60 seconds), up until the end of 2024.
 
 How to use?
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