ITT: Ability to use file path - readme info added.

Author: dmitry-ivanov

README.md

@@ -153,6 +153,12 @@ Checks if specified string is seen as artisan output:
 $this->seeArtisanOutput('Hello, World!');
 ```
 
+Also, path to text file containing output can be provided:
+
+```php
+$this->seeArtisanOutput('correct.output.txt');
+```
+
 #### `dontSeeArtisanOutput()`
 
 Checks if specified string is not seen as artisan output:
@@ -161,6 +167,12 @@ Checks if specified string is not seen as artisan output:
 $this->dontSeeArtisanOutput('Hello, Universe!');
 ```
 
+Also, path to text file containing output can be provided:
+
+```php
+$this->dontSeeArtisanOutput('incorrect.output.txt');
+```
+
 #### `seeArtisanTableOutput()`
 
 Checks if specified data is seen as artisan table output: