Show source of results in Spot
Summary
Some searx engines make visible in the search results from which search engines the results come (SP, google, yahoo, duckduckgo, etc). This is a feature request to make that possible as an OPTION (not always on).
Description
Who will use the new feature?
Spot users.
What is the target of the new feature for this user?
Understand the source of the result, tune engines in preferences to achieve a good mix.
Why this user would like to use this feature?
Avoid certain engines, or results only from a single source.
Examples
Make a query, see the source of result in the page.
Reflection
