Apply fixes from StyleCI (#27)

Author: mpociot

src/Providers/SlackServiceProvider.php

@@ -27,7 +27,7 @@ public function boot()
             $this->mergeConfigFrom(__DIR__.'/../../stubs/slack.php', 'botman.slack');
 
             $this->commands([
-                SlackRTMListenCommand::class
+                SlackRTMListenCommand::class,
             ]);
         }
     }

src/SlackRTMDriver.php

@@ -233,7 +233,7 @@ public function buildServicePayload($message, $matchingMessage, $additionalParam
                         ],
                     ]);
 
-                    // else check if is a path
+                // else check if is a path
                 } elseif ($attachment instanceof BotManFile && file_exists($attachment->getUrl())) {
                     $this->file = (new File())
                         ->setTitle(basename($attachment->getUrl()))