Update recipes.md 
Update recipes.md 

to explain how to sync magento and vue-storefront-api servers  and avoid nonce invalidation due to time difference
pkarw/vue-storefront,pkarw/vue-storefront,DivanteLtd/vue-storefront,DivanteLtd/vue-storefront,pkarw/vue-storefront,DivanteLtd/vue-storefront,pkarw/vue-storefront,DivanteLtd/vue-storefront