docs: update readme to reflect changes made to Logger

README.md

@@ -57,45 +57,45 @@ while the browser will show only a `success` message, the server will give you m
 When `configuration.json` file is missing:
 
 ```shell
-2019/08/05 23:55:40 err Failure reading configuration.json
+2019/08/05 23:55:40 err  Failure reading configuration.json
 ```
 
 When `configuration.json` has a wrong format:
 
 ```shell
-2019/08/05 23:56:40 err Configuration file is not structured properly
-2019/08/05 23:56:40 Error at array index 0: Error at property "id": Type mismatch: expected String, found Undefined
+2019/08/05 23:56:40 err  Configuration file is not structured properly
+2019/08/05 23:56:40  Error at array index 0: Error at property "id": Type mismatch: expected String, found Undefined
 ```
 
 When selected definition is not present in the configuration:
 
 ```shell
-2019/08/06 23:57:52 log Incoming request /run?definition=unknown&secret=unknown-token
-2019/08/06 23:57:52 err Definition with provided id and secret not found
+2019/08/06 23:57:52 info Incoming request /run?definition=unknown&secret=unknown-token
+2019/08/06 23:57:52 err  Definition with provided id and secret not found
 ```
 
 When definition exists but one of the commands fails:
 
 ```shell
-2019/08/06 00:02:20 log Incoming request /run?definition=main&secret=secret-token
-2019/08/06 00:02:20 log Running definition "main"
-2019/08/06 00:02:20 log Executing git branch
-2019/08/06 00:02:20 fatal: not a git repository (or any of the parent directories): .git
-2019/08/06 00:02:20 Process exited with status code 128
-2019/08/06 00:02:20 err Execution FAILED
+2019/08/06 00:02:20 info Incoming request /run?definition=main&secret=secret-token
+2019/08/06 00:02:20 info Running definition "main"
+2019/08/06 00:02:20 info Executing git branch
+2019/08/06 00:02:20  fatal: not a git repository (or any of the parent directories): .git
+2019/08/06 00:02:20  Process exited with status code 128
+2019/08/06 00:02:20 err  Execution FAILED
 ```
 
 Finally, when everything succeeds:
 
 ```shell
-2019/08/06 00:03:30 log Incoming request /run?definition=main&secret=secret-token
-2019/08/06 00:03:30 log Running definition "main"
-2019/08/06 00:03:30 log Executing git branch
-2019/08/06 00:03:30 * master
-2019/08/06 00:03:30 log Executing git status
-2019/08/06 00:03:30 On branch master
-2019/08/06 00:03:30 nothing to commit, working tree clean
-2019/08/06 00:03:30 log Execution SUCCEEDED
+2019/08/06 00:03:30 info Incoming request /run?definition=main&secret=secret-token
+2019/08/06 00:03:30 info Running definition "main"
+2019/08/06 00:03:30 info Executing git branch
+2019/08/06 00:03:30  * master
+2019/08/06 00:03:30 info Executing git status
+2019/08/06 00:03:30  On branch master
+2019/08/06 00:03:30  nothing to commit, working tree clean
+2019/08/06 00:03:30 info Execution SUCCEEDED
 ```
 
 ## Local development