bump minimum MARk version to 2.6.0

app/Mark.php

@@ -12,7 +12,7 @@ use Composer\Semver\Semver;
  */
 class Mark
 {
-    private static $VERSION_CONSTRAINT = "^2.3.0";
+    private static $VERSION_CONSTRAINT = "^2.6.0";
     private static $instance;
 
     public static function get() : Client

routes/web.php

@@ -46,6 +46,8 @@ Route::prefix('app')
             Route::get('evidence/{id}/false-alarm', 'MarkController@falseAlarm');
             Route::get('evidence/{id}/true-detection', 'MarkController@trueDetection');
 
+            // display an error
+            // this route is actually triggered by app/Mark.php
             Route::get('error', 'MarkController@error');
         });