Update/readme for launch (#2)

* Update readme for launch

* Change JS standards link to public one

* Improve formatting

* More clarifications

* Reformat contributing section

* Remove hyphen

* Make formatting consistent

* Improve formatting, remove cryptic acronym

* Add screenshot to readme

* Few minor updates

README.md

@@ -1,19 +1,45 @@
 # Studio by WordPress.com
 
-A desktop application for creating local WordPress environments powered by WordPress Playground.
+A desktop application for creating local WordPress environments, powered by WordPress.com and WordPress Playground.
 
-## Development
+![](https://raw.githubusercontent.com/Automattic/studio/trunk/demo.png)
 
-#### One Time Machine Setup
+## Getting started
+Studio is open source and is available to download for free!
 
-The project includes native dependencies which require Python and it's `setuptools` module to build correctly.
-YMMV but if you manage packages with Homebrew you can do the following:
+**Step 1: Download the App**
+
+[Download Studio for macOS (Intel or Silicon)](https://developer.wordpress.com/studio/) for free today, or get on [the waiting list for the Windows version of Studio](https://developer.wordpress.com/studio-for-windows/).
+
+**Step 2: Explore the Documentation**
+
+[Visit the Studio documentation](https://developer.wordpress.com/docs/developer-tools/studio/) for detailed instructions, feature descriptions, and frequently asked questions.
+
+**Step 3: Give Feedback**
+
+We’d love to get your thoughts and feedback on your experience with Studio. If you have a question or suggestion, [reach out to our Happiness Engineers](https://developer.wordpress.com/contact/). Also, see the Contributing section for more information on how to get in touch with us.
+
+## Contributing
+
+Studio is an open source project that welcomes all contributions. If you spot a bug or the feature you need is missing, open an issue or propose a Pull Request to implement it.
+
+- Reporting bugs: Open an issue in the repository.
+- Ideas or feature requests: Open an issue in the repository.
+- Code contributions: See the sections below.
+
+### Start development
+
+#### Initial setup
+
+The project includes native dependencies which require Python and its `setuptools` module to build correctly.
+
+If you manage packages with Homebrew you can do the following:
 
 ```bash
 $ brew install python3 python-setuptools
 ```
 
-#### Install Dependencies, Incrementally Build, and Run App
+#### Install dependencies, incrementally build, and run app
 
 ```bash
 $ nvm use
@@ -27,9 +53,11 @@ The app automatically launches with the Chromium developer tools opened by defau
 
 `src/renderer.ts` is the entry point for the "renderer"—the code running in the Chromium window.
 
-Code formatting has been set up to make merging PRs easier. It uses the same prettier/eslint mechanism as Calypso, see p4TIVU-9Lo-p2 for details on setting up your editor.
+#### Code formatting
+
+Code formatting has been set up to make merging PRs easier. It uses the same prettier/eslint mechanism as Calypso. See [JavaScript Coding Guidelines](https://github.com/Automattic/wp-calypso/blob/trunk/docs/coding-guidelines/javascript.md) for details on setting up your editor.
 
-## Debugging
+### Debugging
 
 The renderer process can be debugged using the Chromium developer tools. To open the developer tools, press `Cmd+Option+I` on Mac or `Ctrl+Shift+I` on Windows.
 
@@ -48,7 +76,7 @@ $ npm start -- --inspect-brk-electron
 
 Then open `chrome://inspect` in a Chromium-based browser and click "inspect" next to the process you want to debug.
 
-## Building Installers
+### Building Installers
 
 Installers can currently be built on Mac (Intel or Apple Silicon) and Windows:
 
@@ -57,31 +85,10 @@ $ npm install
 $ npm run make
 ```
 
-## Localization
+### Localization
 
 [See localization docs](./docs/localization.md)
 
-## Versioning and Updates
+### Versioning and Updates
 
 [See versioning docs](./docs/versioning-and-updates.md)
-
-## [Linux] Authentication setup for local development
-
-In order for the authentication to work on Linux, you need to follow the next steps:
-
-- Run `npm run make` from the root of the project
-- Create a new `.desktop` file in `~/.local/share/applications/` with the following content:
-
-```
-[Desktop Entry]
-Name=Studio By WordPress.com dev
-Comment=Studio By WordPress.com dev
-Exec=<path_of_project>/out/Studio-linux-x64/studio %U
-Type=Application
-Terminal=false
-MimeType=x-scheme-handler/wpcom-local-dev;
-Categories=Development;
-```
-
-- Run `update-desktop-database ~/.local/share/applications/` to update the desktop database
-- Ensure that there is an new entry in `~/.config/mimeapps.list` for `x-scheme-handler/wpcom-local-dev` protocol.