Fix links in pkg README

pkg/README.md

@@ -13,7 +13,7 @@ Examples:
 * https://github.com/prometheus/prometheus/tree/master/pkg
 * https://github.com/jaegertracing/jaeger/tree/master/pkg
 * https://github.com/istio/istio/tree/master/pkg
-* https://github.com/GoogleContainerTools/kaniko
+* https://github.com/GoogleContainerTools/kaniko/tree/master/pkg
 * https://github.com/google/gvisor/tree/master/pkg
 * https://github.com/google/syzkaller/tree/master/pkg
 * https://github.com/perkeep/perkeep/tree/master/pkg
@@ -48,7 +48,7 @@ Examples:
 * https://github.com/dexidp/dex/tree/master/pkg
 * https://github.com/pusher/oauth2_proxy/tree/master/pkg
 * https://github.com/pdfcpu/pdfcpu/tree/master/pkg
-* https://github.com/weaveworks/kured/pkg
-* https://github.com/weaveworks/footloose/pkg
-* https://github.com/weaveworks/ignite/pkg
+* https://github.com/weaveworks/kured/tree/master/pkg
+* https://github.com/weaveworks/footloose/tree/master/pkg
+* https://github.com/weaveworks/ignite/tree/master/pkg
 * https://github.com/tmrts/boilr/tree/master/pkg