Update READEME link and add back the basic usage (#1366)

README.md

@@ -1,5 +1,5 @@
-Fission: Serverless Functions for Kubernetes
-============================================
+# Fission: Serverless Functions for Kubernetes
+
 [![Build Status](https://travis-ci.org/fission/fission.svg?branch=master)](https://travis-ci.org/fission/fission)
 [![Go Report Card](https://goreportcard.com/badge/github.com/fission/fission)](https://goreportcard.com/report/github.com/fission/fission)
 [![Fission Slack](http://slack.fission.io/badge.svg)](http://slack.fission.io)
@@ -18,7 +18,7 @@ language-specific parts are isolated in something called
 _environments_ (more below).  Fission currently supports NodeJS, Python, Ruby, Go, 
 PHP, Bash, and any Linux executable, with more languages coming soon.
 
-### Performance: 100msec cold start
+# Performance: 100msec cold start
 
 Fission maintains a pool of "warm" containers that each contain a
 small dynamic loader.  When a function is first called,
@@ -26,7 +26,7 @@ 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.
 
-### Kubernetes is the right place for Serverless
+# 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
@@ -37,30 +37,53 @@ Building on Kubernetes also means that anything you do for operations
 on your Kubernetes cluster — such as monitoring or log
 aggregation — also helps with ops on your Fission deployment.
 
-Getting started and documentation
-===============================
+# Getting started and documentation
 
-You can learn more about Fission and get started from [Fission Docs](https://docs.fission.io). 
-* See the [installation guide](https://docs.fission.io/installation/) for installing and running Fission.
-* See the [troubleshooting guide](https://docs.fission.io/trouble-shooting/) for debugging your functions and Fission installation.
+## Fission Concepts
 
-Contributing
-=================
+Visit [concepts](https://docs.fission.io/docs/concepts/) for more details.
 
-### Building Fission
-See the [compilation guide](https://docs.fission.io/contributing/).
+## Documentations
 
-### Contact
-Reach us on [slack](http://slack.fission.io) or
-[twitter](https://twitter.com/fissionio).
+You can learn more about Fission and get started from [Fission Docs](https://docs.fission.io/docs).
+* See the [installation guide](https://docs.fission.io/docs/installation/) for installing and running Fission.
+* See the [troubleshooting guide](https://docs.fission.io/docs/trouble-shooting/) for debugging your functions and Fission installation.
+
+## Usage
+
+```bash
+  # Add the stock NodeJS env to your Fission deployment
+  $ fission env create --name nodejs --image fission/node-env
+
+  # A javascript one-liner that prints "hello world"
+  $ curl https://raw.githubusercontent.com/fission/fission/master/examples/nodejs/hello.js > hello.js
+
+  # Upload your function code to fission
+  $ fission function create --name hello --env nodejs --code hello.js
+
+  # Map GET /hello to your new function
+  $ fission route create --method GET --url /hello --function hello
+
+  # Run the function.  This takes about 100msec the first time.
+  $ fission function test --name hello
+  Hello, world!
+```
+
+# Contributing
+
+## Building Fission
+See the [compilation guide](https://docs.fission.io/docs/contributing/).
+
+## Contact
+Reach us on [slack](http://slack.fission.io) or [twitter](https://twitter.com/fissionio).
 
 Fission is a project by [many contributors](https://github.com/fission/fission/graphs/contributors).
 
-### Community meeting 
+## Community meeting 
 
 A regular community meeting takes place every other Thursday at 08:30 AM PT (Pacific Time). [Convert to your local timezone](http://www.thetimezoneconverter.com/?t=08:30&tz=PT%20%28Pacific%20Time%29).
 
-## Official Releases
+# Official Releases
 
 Official releases of Fission can be found on [the releases page](https://github.com/fission/fission/releases). 
 Please note that it is strongly recommended that you use official releases of Fission, as unreleased versions from 
@@ -68,6 +91,6 @@ the master branch are subject to changes and incompatibilities that will not be
 Builds from the master branch can have functionality changed and even removed at any time without compatibility support 
 and without prior notice.
 
-## Licensing
+# Licensing
 
 Fission is under the Apache 2.0 license.