Update changelog.txt

Author: DevKevYT

changelog.txt

@@ -10,6 +10,7 @@ NOTICE:
 	  This command is especially useful, if you want to include code from a separate file without creating a whole new library.
 	- New Command: long [ANY]; This command casts a given value into java.lang.Long.
 	- New Command: [STRING] % [STRING]; Modulo command.
+	- New Command: readFileLines [OBJ]; Reads the file and returns an array containing all the lines.
 	- Arithmetic operators (+, -, *, /, %) are now able to handle Long.MAX_VALUE values and java.lang.Integers, java.lang.Floats and java.lang.Long not just Strings
 	  as numbers before. (println ((int 10) + 4); is now possible)
 	- The random command now returns only floating pint with 4 decimals and the issue with scientific notation is fixed.