add update scripts for crontab

script/jekyll_update_orders.bash

@@ -5,4 +5,5 @@ cd /var/www/exchange.faircoin.co/p2p/p2p-fairexchange
 git pull
 cd /var/www/exchange.faircoin.co/p2p/p2p-fairexchange/script
 python3 get_orders.py
+cd /var/www/exchange.faircoin.co/p2p/p2p-fairexchange
 bundle exec jekyll build

script/jekyll_update_prices.bash

@@ -5,4 +5,5 @@ cd /var/www/exchange.faircoin.co/p2p/p2p-fairexchange
 git pull
 cd /var/www/exchange.faircoin.co/p2p/p2p-fairexchange/script
 python3 get_prices.py
+cd /var/www/exchange.faircoin.co/p2p/p2p-fairexchange
 bundle exec jekyll build