Tang Rufus

- [ ] readme - [ ] add `.github` markdowns

Check the Cloudflare account is capable of purge a URL

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1. Get host from URL - `public Uri::getHost(void): string` - http://uri.thephpleague.com/5.0/uri/api/ 2. GET `zones/:identifier` - read "name": "example.com" - cache it 3. check host (1) ends with zone name(2)