Runtime and BESS deployment guide update

Change-Id: I6324c89656b9a82550039aed93edaf4cb885bcba
diff --git a/edge_deployment/bess_upf_deployment.rst b/edge_deployment/bess_upf_deployment.rst
index dbf455b..317f8fc 100644
--- a/edge_deployment/bess_upf_deployment.rst
+++ b/edge_deployment/bess_upf_deployment.rst
@@ -5,11 +5,11 @@
 BESS UPF Deployment
 ===================
 
-This section describes how to configure and install BESS UPF.
+This section describes how to configure and deploy BESS UPF.
 
 
-Network Plans
--------------
+Network Settings
+----------------
 
 BESS UPF requires three networks, **enb**, **access**, and **core**, and all
 three networks must use different subnets. To help your understanding,
@@ -42,8 +42,8 @@
 all networks in the Aether pod.
 So in order for UE to access the Internet, two things need to be done in the managmenet server.
 
-* Masquerade UE pool with the external address of the management server.
-* For the response traffic to be delivered to UE, forward them to UPF's **core** interface.
+* For outgoing traffic, masquerade the internal adddress with the external address of the management server.
+* For response traffic to UE, forward them to UPF's **core** interface.
 
 
 Check Cluster Resources
@@ -72,8 +72,8 @@
    }
 
 
-Configure BESS UPF
-------------------
+Configure and Deploy
+--------------------
 
 Download ``aether-app-configs`` if you don't have it already in your development machine.
 
@@ -82,8 +82,7 @@
    $ cd $WORKDIR
    $ git clone "ssh://[username]@gerrit.opencord.org:29418/aether-app-configs"
 
-Move the directory to ``apps/bess-upf`` and create Helm values file for the new cluster.
-The configuration below is for the example environment.
+Move the directory to ``apps/bess-upf/upf1`` and create a Helm values file for the new cluster as shown below.
 Don't forget to replace the IP addresses in the example configuration with the addresses of the actual cluster.
 
 .. code-block:: yaml
@@ -111,7 +110,8 @@
            hostname: "upf"
 
 
-Update ``fleet.yaml`` in the same directory to let Fleet know the custom configuration.
+Update ``fleet.yaml`` in the same directory to let Fleet use the custom configuration when deploying
+BESS UPF to the new cluster.
 
 .. code-block:: yaml
 
@@ -138,4 +138,4 @@
 
 
 Go to Fleet dashboard and wait until the cluster status becomes **Active**.
-Note that it can take up to 1 min for Fleet to fetch the configuration updates.
+It can take up to 1 min for Fleet to fetch the configuration updates.