How to Updating/Upgrading to Magento 2.1.0 using composer ?

open ssh terminal and run below comment on your magento 2 directory 

composer require magento/product-community-edition 2.1.0 --no-update
composer update
rm -rf var/di var/generation
php bin/magento cache:clean
php bin/magento cache:flush
php bin/magento setup:upgrade
php bin/magento setup:di:compile
php bin/magento indexer:reindex

how to add magento 2 static block?

Don't know how to add static block on your magento 2 website. Just play and watch video to add static block on magento 2

how to show/hide editor code view on magento 2 ?