Minor fixes for EAV section

Author: snowcore

5. Using the Entity-Attribute-Value -EAV- Model/2. Demonstrate ability to use EAV entity load and save.md

@@ -90,12 +90,12 @@ Terms:
 ### *Entity manager.save:*
 - resolve entity type - implementing data interface `\Api\Data` when possible, or original class
 - check `has(entity)` - detect create new or update
-  * operation pool.gerOperation(`checkIfExists`)
+  * operation pool.getOperation(`checkIfExists`)
 - if new, operation pool.getOperation(`create`).execute
 - if existing, operation pool.getOperation(`update`).execute
 - run callbacks
 
-### `create` operaton
+### `create` operation
 - event `entity_manager_save_before`
 - event `{$lower_case_entity_type}_save_before`
 - apply sequence - \Magento\Framework\EntityManager\Sequence\SequenceApplier::apply