#1226 update symfony_console docs

doc/tasks/symfony_console.md

@@ -19,18 +19,63 @@ The task lives under the `symfony_console` namespace and has following configura
 grumphp:
     tasks:
         symfony_console:
+            bin: "./bin/console"
             command: [ "lint:container", "-vvv" ]
+            ignore_patterns: [],
+            whitelist_patterns: [],
+            triggered_by: ['php', 'yml', 'xml'],
+            run_always: false
 ```
 
-**Note:** GrumPHP will use the default Symfony console path `./bin/console` from the project root.
-
 ### Parameters
 
+**bin**
+
+*Default: `./bin/console`*
+
+Specify the path to the Symfony Console script. 
+
 **command**
 
+*Default: `[]`*
+
 Specify the symfony command with defined options and arguments.  
 Verify the installed console component version for available commands `./bin/console list`
 
+**ignore_patterns**
+
+*Default: []*
+
+This is a list of file patterns that will be ignored by the Symfony console task. 
+Leave this option blank to run the task for all files defined in the whitelist_patterns and or triggered_by extensions.
+
+**whitelist_patterns**
+
+*Default: []*
+
+This is a list of regex patterns that will filter files to validate. With this option you can skip files like tests. 
+This option is used in relation with the parameter `triggered_by`.
+For example: whitelist files in `src/FolderA/` and `src/FolderB/` you can use
+```yaml
+whitelist_patterns:
+    - /^src\/FolderA\/(.*)/
+    - /^src\/FolderB\/(.*)/
+```
+
+**triggered_by**
+
+*Default: [php, yml, xml]*
+
+This option will specify which file extensions will trigger the Symfony console task.
+By default, altering a `php`, `yml`, `xml` file will trigger the task.
+You can overwrite this option to whatever filetype you want to validate!
+
+**run_always**
+
+*Default: false*
+
+If this is set to `true` the Symfony console task will be executed on every commit, regardless of any modified files.
+
 ## Multiple Console command tasks
 
 [Run the same task twice with different configuration](../tasks.md#run-the-same-task-twice-with-different-configuration)