docs: Update relative links (#518)
docs: Update relative links (#518)

Relative links don't work: [EntityId](entities/entity-store#entity-id) => 
Result: https://datorama.github.io/akita/docs/config/entities/entity-store#entity-id
Expected result: https://datorama.github.io/akita/docs/entities/entity-store/#entity-id
salesforce/akita,salesforce/akita,salesforce/akita,salesforce/akita