Update ADOPTERS.md
Add kismia.com  organisation to ADOPTERS.md
* [Infoblox](https://www.infoblox.com) uses CoreDNS in its Active Trust Cloud SaaS service, as well as for Kubernetes cluster DNS.
* [Sky Betting & Gaming](http://engineering.skybettingandgaming.com) uses CoreDNS for Kubernetes cluster DNS.
+* [Kismia](https://kismia.com) uses CoreDNS for Kubernetes cluster DNS.
