readme updates

README.md

@@ -2,16 +2,16 @@ Fission: Serverless Functions for Kubernetes
 ============================================
 
 Fission is a fast serverless framework for Kubernetes with a focus on
-developer productivity and high performance.  See http://fission.io
-for more.
+developer productivity and high performance.
 
-Fission operates on just code: you don't deal with Docker or
-Kubernetes, they're abstracted away.
+Fission operates on _just code_: Docker and Kubernetes are abstracted
+away.
 
-We're built on Kubernetes because we think any non-trivial app will
-use a combination of serverless functions and more conventional
-microservices, and Kubernetes is a great framework to bring these
-together seamlessly.
+Fission is extensible to any language.  It currently supports NodeJS
+and Python, with more languages coming soon.
+
+100msec cold start
+------------------
 
 Fission maintains a pool of "warm" containers that each contain a
 small dynamic loader.  When a function is first called,
@@ -19,8 +19,16 @@ i.e. "cold-started", a running container is chosen and the function is
 loaded.  This pool is what makes Fission fast: cold-start latencies
 are typically about 100msec.
 
-Fission is extensible to any language.  It currently supports NodeJS
-and Python, with more languages coming soon.
+
+Kubernetes is the right place for Serverless
+--------------------------------------------
+
+We're built on Kubernetes because we think any non-trivial app will
+use a combination of serverless functions and more conventional
+microservices, and Kubernetes is a great framework to bring these
+together seamlessly.
+
+
 
 Fission Concepts
 ================
@@ -29,10 +37,10 @@ A _function_ is a piece of code with an entry point.
 
 An _environment_ is a container with a webserver and dynamic loader
 for functions.  Today, Fission comes with NodeJS and Python
-environments and you can also add your own.  So for example if you
-want to add some binaries to your Python image and call them from your
-code, you can edit the Python environment's Dockerfile, rebuild it,
-and add it to Fission.
+environments.  You can also add your own: for example, if you want to
+add a binary to your Python image, you can edit the Python
+environment's Dockerfile, rebuild it, and add your new environment to
+Fission.
 
 A _trigger_ is something that maps an event to a function; Fission
 supports HTTP triggers today, with upcoming support for other types of