README updates

README.md

@@ -4,14 +4,11 @@ Fission
 Fission is a fast serverless framework for Kubernetes with a focus on
 developer productivity and high performance.
 
-It's heavily customizable (but with sensible defaults), extensible to
+It's customizable (with sensible defaults), extensible to any
-any language, and interoperates well with other infrastructure.
+language, and interoperates well with other infrastructure.
 
-You can create and edit functions throughs a web UI, or you can use
+See https://fission.io for more.
-your favorite editor and upload them using a CLI.  You can trigger these
-functions via HTTP requests to paths, or by timers.
 
-Try it out at http://demo.example.com
 
 Running Fission
 ===============
@@ -21,32 +18,55 @@ On your own Kubernetes cluster
 
 ### Setup Kubernetes
 
+On your laptop:
+
   https://github.com/kubernetes/minikube
 
+Or use Google Container Engine.
+
+### Verify access to the cluster
+
+  $ kubectl version
+
 ### Get and Run Fission
 
-  $ wget http://example.com/fission.yaml
+If you're using GKE, use the fission.yaml unmodified.  If you're using
-  $ kubectl create -f fission.yaml
+minikube, change all instances of LoadBalancer services to NodePort.
 
 
+  $ curl http://fission.io/fission.yaml | kubectl create -f -
+
+  $ kubectl --namespace fission get services
+
+Save the external IP addresses of controller and router services in
+FISSION_URL and FISSION_ROUTER, respectively.
+
+### Install the client CLI
+
+  $ curl http://fission.io/fission > fission
+  $ chmod +x fission
+  $ sudo mv fission /usr/local/bin/
+
+### Run an example
+
+  $ fission env create --name nodejs --image fission/node-env
+  $ echo 'module.exports = function(context, callback) { callback(200, "Hello, world!\n"); }' > hello.js  
+  $ fission function create --name hello --env nodejs --code hello.js
+  $ fission route create --method GET --url /hello --function hello
+  $ curl http://$FISSION_ROUTER/hello
+  Hello, world!
+
 Status
 ======
 
-Fission is in early alpha.
+Fission is in early alpha.  Watch this space for announcements soon!
 
 
 Performance
 ===========
 
-The goal is to have less than 1 second latency for requests that don't
+The alpha release has focussed on cold-start latency performance.  For
-have a running instance.  In practice, benchmarks show this latency at
+requests that don't have a running instance, i.e. a "cold start",
-TODO msec for the NodeJS environment. 
+fission has a latency overhead of less than 100 msec for the NodeJS
+environment.
 
-Here's a simple hello world benchmark on NodeJS: TODO.  It achieves
-TODO requests per second on a TODO-node Kubernetes cluster.
-
-
-Contributions
-=============
-
-TODO