updating hooks

fix hex gen from relative invocation path

.githooks/pre-commit/02-hexgen

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+subdir='docs/data'
+datdir="${PWD}/${subdir}"
+
+${datdir}/parse.py
+
+for t in 'simple' 'multi';
+do
+	for r in 'request' 'response';
+	do
+		git add ${subdir}/${r}.${t}.hex
+	done
+done
+
+echo "Regenerated hex representations"