Hugo transition: Fix github links (#8549)

with the reorganization, in-tree github links have changed, update them.

Closes: #8547

content/en/blog/_posts/2018-04-11-migrating-the-kubernetes-blog.md

@@ -23,7 +23,7 @@ We hope that making blog submissions more accessible will encourage greater comm
 You can submit a blog post for consideration one of two ways:
 
 * Submit a Google Doc through the [blog submission form](https://docs.google.com/forms/d/e/1FAIpQLSch_phFYMTYlrTDuYziURP6nLMijoXx_f7sLABEU5gWBtxJHQ/viewform)
-* Open a pull request against the [website repository](https://github.com/kubernetes/website/tree/master/blog) as described [here](/docs/home/contribute/create-pull-request/)
+* Open a pull request against the [website repository](https://github.com/kubernetes/website/tree/master/content/en/blog/_posts) as described [here](/docs/home/contribute/create-pull-request/)
 
 If you have a post that you want to remain confidential until your publish date, please submit your post via the Google form. Otherwise, you can choose your submission process based on your comfort level and preferred workflow.
 

content/en/docs/concepts/configuration/assign-pod-node.md

@@ -16,7 +16,7 @@ that a pod ends up on a machine with an SSD attached to it, or to co-locate pods
 services that communicate a lot into the same availability zone.
 
 You can find all the files for these examples [in our docs
-repo here](https://github.com/kubernetes/website/tree/{{< param "docsbranch" >}}/docs/user-guide/node-selection).
+repo here](https://github.com/kubernetes/website/tree/{{< param "docsbranch" >}}/docs/concepts/configuration/).
 
 {{< toc >}}