Snippet_Render
Issue: how to work with blocks.
Test Urls:
http://{host.name}/snippet_render/block/html
http://{host.name}/snippet_render/block/template
http://{host.name}/snippet_render/block/text
To enable this module execute:
php bin/magento --clear-static-content module:enable Snippet_Render
php bin/magento setup:upgrade