fix options demo

Author: Remi-Gau

demos/openneuro/ds000114_get_option.m

@@ -20,7 +20,7 @@
   opt.taskName = 'linebisection';
 
   opt.anatReference.type = 'T1w';
-  opt.anatReference.session = 2;
+  opt.anatReference.session = 'retest';
 
   % Uncomment the lines below to run preprocessing
   % - don't use realign and unwarp

demos/openneuro/ds001168_get_option.m

@@ -20,7 +20,7 @@
   opt.taskName = 'rest';
 
   opt.anatReference.type = 'T1w';
-  opt.anatReference.session = 1;
+  opt.anatReference.session = '1';
 
   % Uncomment the lines below to run preprocessing
   % - don't use realign and unwarp