Update check_extra768

fixed typo

checks/check_extra768

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-``# Prowler - the handy cloud security tool (copyright 2019) by Toni de la Fuente
+# Prowler - the handy cloud security tool (copyright 2019) by Toni de la Fuente
 #
 # Licensed under the Apache License, Version 2.0 (the "License"); you may not
 # use this file except in compliance with the License. You may obtain a copy
@@ -52,4 +52,4 @@ extra768(){
     fi
   done
 #  rm -rf $SECRETS_TEMP_FOLDER
-}
+}