Update README.md (#3721)

Signed-off-by: imba-tjd <imba-tjd@users.noreply.github.com>

plugin/dnstap/README.md

@@ -6,7 +6,7 @@
 
 ## Description
 
-dnstap is a flexible, structured binary log format for DNS software; see http://dnstap.info. With this
+dnstap is a flexible, structured binary log format for DNS software; see https://dnstap.info. With this
 plugin you make CoreDNS output dnstap logging.
 
 Note that there is an internal buffer, so expect at least 13 requests before the server sends its
@@ -90,4 +90,4 @@ func (h Dnstap) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg)
 
 ## See Also
 
-[dnstap.info](http://dnstap.info).
+[dnstap.info](https://dnstap.info).

plugin/kubernetes/README.md

@@ -55,7 +55,7 @@ kubernetes [ZONES...] {
    If this option is omitted all namespaces are exposed
 * `namespace_labels` **EXPRESSION** only expose the records for Kubernetes namespaces that match this label selector.
    The label selector syntax is described in the
-   [Kubernetes User Guide - Labels](http://kubernetes.io/docs/user-guide/labels/). An example that
+   [Kubernetes User Guide - Labels](https://kubernetes.io/docs/user-guide/labels/). An example that
    only exposes namespaces labeled as "istio-injection=enabled", would use:
    `labels istio-injection=enabled`.
 * `labels` **EXPRESSION** only exposes the records for Kubernetes objects that match this label selector.