Merge pull request #24 from patchlevel/update-docs

update docs

Author: DavidBadura

README.md

@@ -424,7 +424,7 @@ final class HotelController
 
 ```
 
-> :book: todo: command bus
+> :book: You can also use a [command bus](docs/event_bus.md).
 
 Consult the [bundle documentation](#documentation) 
 or [library documentation](https://github.com/patchlevel/event-sourcing/#documentation) for more information. 

docs/installation.md

@@ -53,7 +53,7 @@ patchlevel_event_sourcing:
 Finally we have to fill the ENV variable with a connection url.
 
 ```dotenv
-EVENTSTORE_URL: mysql://user:secret@localhost/app
+EVENTSTORE_URL=mysql://user:secret@localhost/app
 ```
 
 > :book: You can find out more about what a connection url looks like [here](https://www.doctrine-project.org/projects/doctrine-dbal/en/latest/reference/configuration.html#connecting-using-a-url).