Rewrite About Page

[jonaharagon]

We need to rewrite https://search.privacytools.io/about to something that's more personalized from @privacytoolsIO.

Edit: https://github.com/privacytoolsIO/search/blob/master/searx/templates/__common__/about.html

[relict007]

Could you also add a privacy policy.

[jonaharagon]

Yes definitely: #3