Move mermaid from CNAME to NS.

Author: sidharthv96

cnames_active.js

@@ -1795,7 +1795,6 @@ var cnames_active = {
   "mercury": "henryqw.github.io/mercury",
   "merkletree": "miguelmota.github.io/merkletreejs",
   "merkur": "mjancarik.github.io/merkur",
-  "mermaid": "mermaid-js.github.io/mermaid",
   "mern": "iammohaiminul.github.io/MERNjs",
   "mert": "mert574.github.io",
   "mesh": "crcn.github.io/mesh.js.org", // noCF? (don´t add this in a new PR)

ns_active.js

@@ -17,6 +17,7 @@ var ns_active = {
   "castyte": ["ns31.cloudns.net", "ns32.cloudns.net", "ns33.cloudns.net", "ns34.cloudns.net"],
   "engine262": ["ns1.he.net", "ns2.he.net", "ns3.he.net", "ns4.he.net", "ns5.he.net"],
   "lolifamily": ["glen.ns.cloudflare.com", "melany.ns.cloudflare.com"],
+  "mermaid": ["dns1.p04.nsone.net", "dns2.p04.nsone.net", "dns3.p04.nsone.net", "dns4.p04.nsone.net"],
   "ruby": ["alexis.ns.cloudflare.com", "connie.ns.cloudflare.com"],
   "samplasion": ["ns31.cloudns.net", "ns32.cloudns.net", "ns33.cloudns.net", "ns34.cloudns.net"],
   "shebang": ["dns1.p01.nsone.net", "dns2.p01.nsone.net", "dns3.p01.nsone.net", "dns4.p01.nsone.net"]