docs: fix by proofreading

Co-authored-by: John Paul E. Balandan, CPA <paulbalandan@gmail.com>

Author: kenjis

system/Language/en/Errors.php

@@ -16,7 +16,7 @@
     'pageNotFound'    => '404 - Page Not Found',
     'sorryCannotFind' => 'Sorry! Cannot seem to find the page you were looking for.',
     'badRequest'      => '400 - Bad Request',
-    'sorryBadRequest' => 'Sorry! Something wrong with your request.',
+    'sorryBadRequest' => 'Sorry! Something is wrong with your request.',
     'whoops'          => 'Whoops!',
     'weHitASnag'      => 'We seem to have hit a snag. Please try again later...',
 ];