How to configure redirection on submit?

[madiyetov]

simplesearch.yaml file:

enabled: true
built_in_css: true
built_in_js: true
display_button: false
min_query_length: 3
route: /help
search_content: raw
template: categories
filters: @self
filter_combinator: or
ignore_accented_characters: false
order:
    by: date
    dir: desc

I have header.twig.html template which have simplesearch-box element. This template is added to different routes. So for simplesearch to work I need to redirect it to /help page because of route: /help configured. How can I do that or may be there are another ways to get same behavior?

Thanks in advance