Further increases IA14 axis range

Lleida's plot exits the graph again.

Change-Id: I1583a752e76c643cd36def2a03e9a24834a02f25
diff --git a/cron/plot.gnu b/cron/plot.gnu
index 3576b08..a159ad6 100644
--- a/cron/plot.gnu
+++ b/cron/plot.gnu
@@ -2,7 +2,7 @@
 set ylabel "Mitjana taxa de creixement darrers 7 dies"
 set title font "Helvetica,20"
 
-set xrange[0:500]
+set xrange[0:575]
 set yrange[0:5]
 set samples 400