(maint) Add a MAINTAINERS file (#5255)

Move maintainers documentation to a structured MAINTAINERS file, created with a puppetlabs/maintainers gem.

MAINTAINERS

@@ -0,0 +1,65 @@
+{
+  "version": 1,
+  "file_format": "This MAINTAINERS file format is described at https://github.com/puppetlabs/maintainers",
+  "issues": "https://tickets.puppet.com/browse/PUP",
+  "people": [
+    {
+      "github": "hlindberg",
+      "email": "henrik.lindberg@puppet.com",
+      "name": "Henrik Lindberg"
+    },
+    {
+      "github": "kylog",
+      "email": "kylo@puppet.com",
+      "name": "Kylo Ginsberg"
+    },
+    {
+      "github": "joshcooper",
+      "email": "josh@puppet.com",
+      "name": "Josh Cooper"
+    },
+    {
+      "github": "MikaelSmith",
+      "email": "michael.smith@puppet.com",
+      "name": "Michael Smith"
+    },
+    {
+      "github": "thallgren",
+      "email": "thomas.hallgren@puppet.com",
+      "name": "Thomas Hallgren"
+    },
+    {
+      "github": "branan",
+      "email": "branan@puppet.com",
+      "name": "Branan Riley"
+    },
+    {
+      "github": "whopper",
+      "email": "whopper@puppet.com",
+      "name": "Will Hopper"
+    },
+    {
+      "github": "Iristyle",
+      "name": "Ethan J. Brown"
+    },
+    {
+      "github": "HAIL9000",
+      "email": "hailee@puppet.com",
+      "name": "Hailee Kenney"
+    },
+    {
+      "github": "er0ck",
+      "email": "eric.thompson@puppet.com",
+      "name": "Eric Thompson"
+    },
+    {
+      "github": "johnduarte",
+      "email": "john.duarte@puppet.com",
+      "name": "John Duarte"
+    },
+    {
+      "github": "adrienthebo",
+      "name": "Adrien Thebo"
+    }
+  ]
+}

README.md

@@ -72,9 +72,3 @@ Long-term support, including security patches and bug fixes, is available for
 commercial customers. Please see the following page for more details:
 
 [Puppet Enterprise Support Lifecycle](https://puppetlabs.com/misc/puppet-enterprise-lifecycle)
-
-Maintainers
--------
-
-* Kylo Ginsberg, kylo@puppet.com, github:kylog, jira:kylo
-* Henrik Lindberg, henrik.lindberg@puppet.com, github:hlindberg, jira:henrik.lindberg