Update readme (#861)

* Update readme

* Fix casing

* Add a better video still

* Address feedback

* Update statement about samples

* Recommit video.png with LFS settings.

* Cut a sentence to make intro more concise

Author: sergeybykov

README.md

@@ -1,39 +1,65 @@
-# Temporal  
 [![Build status](https://badge.buildkite.com/fc0e676d7bee1a159916af52ebdb541708d4b9f88b8a980f6b.svg)](https://buildkite.com/temporal/temporal-server)
 [![Coverage Status](https://coveralls.io/repos/github/temporalio/temporal/badge.svg?branch=master)](https://coveralls.io/github/temporalio/temporal?branch=master)
 [![Discourse](https://img.shields.io/static/v1?label=Discourse&message=Get%20Help&color=informational)](https://community.temporal.io)
 
-Visit [docs.temporal.io](https://docs.temporal.io) to learn about Temporal.
+# Temporal  
+
+Temporal is a microservice orchestration platform which enables developers to build scalable applications without sacrificing productivity or reliability.
+Temporal server executes units of application logic, Workflows, in a resilient manner that automatically handles intermittent failures, and retries failed operations.
 
-This repo contains the source code of the Temporal server. To implement workflows, activities and worker use [Go SDK](https://github.com/temporalio/sdk-go) or [Java SDK](https://github.com/temporalio/sdk-java).
+Temporal is a mature technology, a fork of Uber's Cadence.
+Temporal is being developed by [Temporal Technologies](https://temporal.io/), a startup by the creators of Cadence.
 
-See Maxim's talk at [Data@Scale Conference](https://atscaleconference.com/videos/cadence-microservice-architecture-beyond-requestreply) for an architectural overview of Temporal.
+[![Temporal](video.png)](http://www.youtube.com/watch?v=f-18XztyN6c "Temporal")
+
+Learn more about Temporal at [docs.temporal.io](https://docs.temporal.io).
 
 ## Getting Started
 
-### Start the temporal-server locally
+### Download and Start Temporal Server Locally
+
+Execute the following commands to start a pre-built image along with all the dependencies.
 
-We highly recommend that you use [Temporal service docker](docker/README.md) to run the service.
+```bash
+$ curl -L https://github.com/temporalio/temporal/releases/latest/download/docker.tar.gz | tar -xz
+$ cd docker
+$ docker-compose up
+```
+
+Refer to [Temporal service docker](docker/README.md) for more advanced options.
 
 ### Run the Samples
 
-Try out the sample recipes for [Go](https://github.com/temporalio/samples-go) or [Java](https://github.com/temporalio/samples-java) to get started.
+Clone or download samples for [Go](https://github.com/temporalio/samples-go) or [Java](https://github.com/temporalio/samples-java) and run them with the local Temporal server.
+We have a number of [HelloWorld type scenarios](https://github.com/temporalio/samples-java#helloworld) available, as well as more advanced ones. Note that the sets of samples are currently different between Go and Java.
 
 ### Use CLI
 
-Try out [Temporal command-line tool](tools/cli/README.md) to perform various tasks on Temporal
+Use [Temporal's command line tool](https://docs.temporal.io/docs/tctl) `tctl` to interact with the local Temporal server.
+
+```bash
+$ alias tctl="docker run --rm temporalio/tctl:latest --address host.docker.internal:7233"
+$ tctl namespace list
+$ tctl workflow list
+```
+
+### Use Temporal Web UI
 
-### Use Temporal Web
+Try [Temporal Web UI](https://github.com/temporalio/web) by opening [http://localhost:8088](http://localhost:8088)for viewing your sample workflows executing on Temporal.
 
-Try out [Temporal Web UI](https://github.com/temporalio/web) to view your workflows on Temporal.  
-(This is already available at localhost:8088 if you run Temporal with docker compose)
+## Repository
+
+This repository contains the source code of the Temporal server. To implement Workflows, Activities and Workers, use [Go SDK](https://github.com/temporalio/sdk-go) or [Java SDK](https://github.com/temporalio/sdk-java).
 
 ## Contributing
 
 We'd love your help in making Temporal great. Please review our [contribution guide](CONTRIBUTING.md).
 
-If you'd like to work on or propose a new feature, first peruse [feature requests](https://community.temporal.io/c/feature-requests/6) and our [proposals repo](https://github.com/temporalio/proposals) to discover existing active and accepted proposals. Feel free to join the Temporal [Slack channel](https://join.slack.com/t/temporalio/shared_invite/zt-c1e99p8g-beF7~ZZW2HP6gGStXD8Nuw) to start a discussion or check if a feature has already been discussed. Once you're sure the proposal is not covered elsewhere, please follow our [proposal instructions](https://github.com/temporalio/proposals#creating-a-new-proposal) or submit a [feature request](https://community.temporal.io/c/feature-requests/6).
+If you'd like to work on or propose a new feature, first peruse [feature requests](https://community.temporal.io/c/feature-requests/6) and our [proposals repo](https://github.com/temporalio/proposals) to discover existing active and accepted proposals.
+
+Feel free to join the Temporal [Slack channel](https://join.slack.com/t/temporalio/shared_invite/zt-c1e99p8g-beF7~ZZW2HP6gGStXD8Nuw) to start a discussion or check if a feature has already been discussed.
+Once you're sure the proposal is not covered elsewhere, please follow our [proposal instructions](https://github.com/temporalio/proposals#creating-a-new-proposal) or submit a [feature request](https://community.temporal.io/c/feature-requests/6).
 
 ## License
 
-MIT License, please see [LICENSE](https://github.com/temporalio/temporal/blob/master/LICENSE) for details.
+[MIT License](https://github.com/temporalio/temporal/blob/master/LICENSE)