change file permission

zerotier/add_ip_rule.sh

@@ -1 +1,3 @@
+#!/bin/sh
 ip rule add from all lookup main pref 1
+

zerotier/join.sh

@@ -1,3 +1,4 @@
+#!/bin/sh
 export LD_LIBRARY_PATH=/data/adb/zerotier/lib
 cd /data/adb/zerotier/
 cat /sdcard/Android/zerotier/network_id.txt | xargs ./zerotier-cli -D./home join

zerotier/leave.sh

@@ -1,3 +1,4 @@
+#!/bin/sh
 export LD_LIBRARY_PATH=/data/adb/zerotier/lib
 cd /data/adb/zerotier
 cat /sdcard/Android/zerotier/network_id.txt | xargs ./zerotier-cli -D./home leave