Update MetaAnalysis_01_GingerALE.rst

docs/MetaAnalysis/MetaAnalysis_ShortCourse/MetaAnalysis_01_GingerALE.rst

@@ -68,7 +68,7 @@ From this sample file, we can see that it requires the following fields:
 * Number of subjects in the study
 * List of coordinates in x-y-z format for each foci reported in the study.
 
-Note that the reference space field is listed only once at the beginning of the file, and that this field, along with the fields listing the study name and the number of subjects, are preceded by two forward slashes ("``//``"). Each triple of coordinates is listed on a separate line, while a carriage return separates each study.
+Note that the reference space field is listed only once at the beginning of the file, and that this field, along with the fields listing the study name and the number of subjects, are preceded by two forward slashes ("``//``"). Each set of coordinates is listed on a separate line, while a carriage return separates each study.
 
 Let's use this example file to run a small GingerALE meta-analysis. Either transcribe or copy and paste the values into a text file, using a program such as Macintosh's ``TextEdit``. (Be sure to remove the Rich Text Formatting by selecting ``Format -> Make Plain Text``, or else GingerALE won't be able to read the file.) Save the file into your ``GingerALE_Demo`` folder as ``Acupuncture_Foci.txt``.