Update metadata.json to match other modules

This updates metadata.json to match our other modules, e.g.
[ploperations-account][] and [ploperations-ssh][].

[ploperations-account]: https://github.com/ploperations/ploperations-account/blob/master/metadata.json
[[ploperations-ssh]: https://github.com/ploperations/ploperations-ssh/blob/e7f8a51bda4867748f121fc9621f37b4f4599dfb/metadata.json

metadata.json

@@ -1,12 +1,17 @@
 {
   "name": "puppet-ssl",
   "version": "0.1.0",
-  "author": "Puppet InfraCore",
-  "summary": "",
+  "author": "InfraCore at Puppet",
+  "summary": "Manage SSL certificates and keys",
   "license": "Apache-2.0",
-  "source": "",
+  "source": "https://github.com/puppetlabs-operations/puppet-ssl.git",
+  "project_page": "https://github.com/puppetlabs-operations/puppet-ssl",
+  "issues_url": "https://github.com/puppetlabs-operations/puppet-ssl/issues",
   "dependencies": [
-
+    {
+      "name": "puppetlabs/stdlib",
+      "version_requirement": ">= 5.0.0 < 6.0.0"
+    }
   ],
   "operatingsystem_support": [
     {