Add gowogle.voring.me as public instance (#650)

Also removes fosshost instance from readme

From @benbusby:
I'm unable to get in touch with fosshost support about the whoogle
instance being unavailable, and am no longer interested in
maintaining the instance due to the lack of communication.

README.md

@@ -508,13 +508,11 @@ A lot of the app currently piggybacks on Google's existing support for fetching
 
 ## Public Instances
 
-*Note: Use public instances at your own discretion. The maintainers of Whoogle are only responsible for https://whoogle.fossho.st, and do not personally validate the integrity of any other instances. Popular public instances are more likely to be rate-limited or blocked.*
+*Note: Use public instances at your own discretion. The maintainers of Whoogle do not personally validate the integrity of any other instances. Popular public instances are more likely to be rate-limited or blocked.*
 
 | Website | Country | Language | Cloudflare |
 |-|-|-|-|
-| [https://whoogle.fossho.st](https://whoogle.fossho.st) (down until further notice) | 🇺🇸 US | Multi-choice | |
 | [https://search.albony.xyz](https://search.albony.xyz/) | 🇮🇳 IN | Multi-choice |  |
-| [https://whoogle.sdf.org](https://whoogle.sdf.org) | 🇺🇸 US | Multi-choice |
 | [https://search.garudalinux.org](https://search.garudalinux.org) | 🇩🇪 DE | Multi-choice |  |
 | [https://whooglesearch.net](https://whooglesearch.net) | 🇩🇪 DE | Spanish |  |
 | [https://s.alefvanoon.xyz](https://s.alefvanoon.xyz) | 🇺🇸 US | Multi-choice | ✅ |
@@ -522,6 +520,8 @@ A lot of the app currently piggybacks on Google's existing support for fetching
 | [https://search.sethforprivacy.com](https://search.sethforprivacy.com) | 🇩🇪 DE | English | |
 | [https://whoogle.dcs0.hu](https://whoogle.dcs0.hu) | 🇭🇺 HU | Multi-choice | ✅ |
 | [https://whoogle.esmailelbob.xyz](https://whoogle.esmailelbob.xyz) | 🇨🇦 CA | Multi-choice | |
+| [https://gowogle.voring.me](https://gowogle.voring.me) | 🇺🇸 US | Multi-choice | |
+
 
 
 * A checkmark in the "Cloudflare" category here refers to the use of the reverse proxy, [Cloudflare](https://cloudflare.com). The checkmark will not be listed for a site which uses Cloudflare DNS but rather the proxying service which grants Cloudflare the ability to monitor traffic to the website.