remove keep-alive indication

content/rest/guides/getting-started-with-the-rest-api.md

@@ -59,7 +59,6 @@ $ curl -i {% data variables.product.api_url_pre %}/users/defunkt
 > Server: GitHub.com
 > Date: Sun, 11 Nov 2012 18:43:28 GMT
 > Content-Type: application/json; charset=utf-8
-> Connection: keep-alive
 > Status: 200 OK
 > ETag: "bfd85cbf23ac0b0c8a29bee02e7117c6"
 > X-RateLimit-Limit: 60

content/rest/overview/resources-in-the-rest-api.md

@@ -36,7 +36,6 @@ $ curl -i {% data variables.product.api_url_pre %}/users/octocat/orgs
 > Server: nginx
 > Date: Fri, 12 Oct 2012 23:33:14 GMT
 > Content-Type: application/json; charset=utf-8
-> Connection: keep-alive
 > Status: 200 OK
 > ETag: "a00049ba79152d03380c34652f2cb612"
 > X-GitHub-Media-Type: github.v3