update docs, fix dockerhub link

Author: jmccormick2001

README.asciidoc

@@ -183,7 +183,7 @@ The operator functionality runs in a Kubernetes Deployment on your
 Kubernetes cluster.  
 
 The *postgres-operator* Docker container image is available on link:https://hub.docker.com/r/crunchydata/postgres-operator/[Dockerhub]. 
-The *postgres-operator-apiserver* Docker container image is available on link:https://hub.docker.com/r/crunchydata/postgres-operator-apiserver/[Dockerhub]. 
+The *postgres-operator-apiserver* Docker container image is available on link:https://hub.docker.com/r/crunchydata/apiserver/[Dockerhub].
 The *pgo* client is available on in the Releases section of
 this github repo site.
 

docs/build.asciidoc

@@ -87,6 +87,9 @@ export CO_IMAGE_TAG=$CO_BASEOS-$CO_VERSION
 export CO_NAMESPACE=demo
 export CO_CMD=kubectl
 export CO_APISERVER_URL=https://postgres-operator:8443
+export PGO_CA_CERT=$COROOT/conf/apiserver/server.crt
+export PGO_CLIENT_CERT=$COROOT/conf/apiserver/server.crt
+export PGO_CLIENT_KEY=$COROOT/conf/apiserver/server.key
 ....
 
 The value of CO_APISERVER_URL is used by the *pgo* client to connect