Merge pull request #6995 from javabrett/httpsProxy

Include httpsProxy key/value in sample client config.json

network/proxy.md

@@ -36,6 +36,7 @@ configure it in different ways:
        "default":
        {
          "httpProxy": "http://127.0.0.1:3001",
+         "httpsProxy": "http://127.0.0.1:3001",
          "noProxy": "*.test.example.com,.example2.com"
        }
      }