Fix book link

Author: lizrice

docs/conclusions.md

@@ -6,13 +6,13 @@ to make your Kubernetes deployments more secure. Thank you for your time!
 ## Further reading
 
 You'll find more details and further resources about Kubernetes Security at
-[kubernetes-security.info](https://kubernetes-security.info) including a link 
+[kubernetes-security.info](https://kubernetes-security.info) including a link
 to download an electronic copy of our book [here](https://info.aquasec.com/kubernetes-security):
 
 ![Kubernetes Security book](https://kubernetes-security.info/assets/img/cover.png)
 
-If you'd like to dive into more technical details, you might also like to 
-check out Liz's book on [Container Security](https://container-security.tech).
+If you'd like to dive into more technical details, you might also like to
+check out Liz's book on [Container Security](https://containersecurity.tech).
 
 ## Related resources