Add the script used to compare pairs while building the Parallel subcorpus

scripts/parallel-diff.sh

+#!/bin/sh
+
+PREFIX="."
+
+if [ "$#" == 2 ]
+then
+    PREFIX="${1%/}"
+    shift 1
+fi
+
+grep -i "${1}" "${PREFIX}/files.tsv" | cut -d$'\t' -f 1-3 | sed "s|^\(.*\)\t\(.*\)\t\(.*\)$|\"${PREFIX}/Text/\1/T\2/\3.txt\"|" | xargs -n 2 diff -y | less
+