diff --git a/prereqs/docker-registry.md b/prereqs/docker-registry.md
index 8290700..a94587e 100644
--- a/prereqs/docker-registry.md
+++ b/prereqs/docker-registry.md
@@ -1,4 +1,4 @@
-# Docker Registry
+# Docker Registry (Optional)
 
 The section describes how to install an **insecure** *docker registry* in Kubernetes, using the standard Kubernetes helm charts.
 
diff --git a/prereqs/openstack-helm.md b/prereqs/openstack-helm.md
index 4fa20d4..d60f9a8 100644
--- a/prereqs/openstack-helm.md
+++ b/prereqs/openstack-helm.md
@@ -1,4 +1,4 @@
-# OpenStack
+# OpenStack (Optional)
 
 The [openstack-helm](https://github.com/openstack/openstack-helm)
 project can be used to install a set of Kubernetes nodes as OpenStack
diff --git a/prereqs/optional.md b/prereqs/optional.md
index 2681b30..370041e 100644
--- a/prereqs/optional.md
+++ b/prereqs/optional.md
@@ -3,12 +3,12 @@
 Although not required, you may want to install one or both of the following
 packages:
 
-* **Local Registry:** If your environment does not permit connecing your
+* **Local Registry:** If your environment does not permit connecting your
   POD to ther public Internet, you may want to take advantage of a local Docker
   registery. The following [registry setup](docker-registry.md) will help.
   (Having a local registry is also useful when doing local development, as outlined
   in the [Developer Guide](../developer/workflows.md).)
 
 * **OpenStack:** If you need to include OpenStack in your deployment,
-  so you can bring up VMs on your POD, you will need to following the  
-  [OpenStack deployment](openstack-helm.md) guide. 
+  so you can bring up VMs on your POD, you will need to following the
+  [OpenStack deployment](openstack-helm.md) guide.