Fix # 650: Replace broken weighted round robin link (#651)

Author: mleers

Diff for: README.md

@@ -597,7 +597,7 @@ DNS is hierarchical, with a few authoritative servers at the top level.  Your ro
 
 Services such as [CloudFlare](https://www.cloudflare.com/dns/) and [Route 53](https://aws.amazon.com/route53/) provide managed DNS services.  Some DNS services can route traffic through various methods:
 
-* [Weighted round robin](https://www.g33kinfo.com/info/round-robin-vs-weighted-round-robin-lb)
+* [Weighted round robin](https://www.jscape.com/blog/load-balancing-algorithms)
     * Prevent traffic from going to servers under maintenance
     * Balance between varying cluster sizes
     * A/B testing