style(installing-workflow): s/encompase/encompass/

Author: Matthew Fisher

src/installing-workflow/system-requirements.md

@@ -42,7 +42,7 @@ Any Kubernetes 1.1 cluster should also use a Docker version < 1.10.0 so that `ku
 
 ## Docker Insecure Registry
 
-The on-cluster, Deis-managed Docker registry is not deployed with TLS by default. As such, all Kubernetes worker nodes must have their Docker daemons configured to use an insecure registry. The subnet should encompase any private networks used by your worker nodes including any overlay networks. Depending on your Kubernetes and Docker configuration, setting `EXTRA_DOCKER_OPTS="--insecure-registry=10.0.0.0/8"` may be sufficient.
+The on-cluster, Deis-managed Docker registry is not deployed with TLS by default. As such, all Kubernetes worker nodes must have their Docker daemons configured to use an insecure registry. The subnet should encompass any private networks used by your worker nodes including any overlay networks. Depending on your Kubernetes and Docker configuration, setting `EXTRA_DOCKER_OPTS="--insecure-registry=10.0.0.0/8"` may be sufficient.
 
 ## SELinux + OverlayFS