Update README.md

Author: cjabradshaw

README.md

@@ -1,7 +1,7 @@
 # SahulHumanSpread
 Code and data files necessary for reproducing cellular-automaton model of human spread across Sahul
 
-This code and these data reproduce the results in the following paper (currently in review):
+This code and these data reproduce the results in the following paper (revision currently in review):
 
 BRADSHAW, CJA, K NORMAN, S ULM, AN WILLIAMS, C CLARKSON, J CHADŒUF, SC LIN, Z JACOBS, RG ROBERTS, MI BIRD, LS WEYRICH, S HABERLE, S O’CONNOR, B LLAMAS, TJ COHEN, T FRIEDRICH, P VETH, M LEAVESLEY, F SALTRÉ. In review. Rapid peopling of Late Pleistocene Sahul. Nature Communications