README: Add intro, contributing

README.md

@@ -1,24 +1,81 @@
-<kbd height=36><img src=https://raw.githubusercontent.com/irgolic/orange3/master/distribute/icon-48.png alt=img height=36/></kbd> Orange
-======
+<p align="center">
+    <a href="https://orange.biolab.si/download">
+    <img src="https://raw.githubusercontent.com/irgolic/orange3/README-shields/distribute/orange-title.png" alt="Orange Data Mining" height="200">
+    </a>
+</p>
+<p align="center">
+    <a href="https://orange.biolab.si/download" alt="Latest release">
+        <img src="https://img.shields.io/github/v/release/biolab/orange3?label=download" /></a>
+    <a href="https://orange3.readthedocs.io/en/latest/?badge=latest" alt="Documentation">
+        <img src="https://readthedocs.org/projects/orange3/badge/?version=latest"></a>
+</p>
+
+# Orange
+[Orange] is a data mining and visualization toolbox for novice and expert alike. To explore data with Orange, one requires __no__ programming or in-depth mathematical knowledge. We believe that workflow-based data science tools democratize data science by hiding complex underlying mechanics and exposing intuitive concepts. Anyone who owns data, or is motivated to peek into data, should have the means to do so.
+
+<p align="center">
+    <a href="https://orange.biolab.si/download">
+    <img src="https://raw.githubusercontent.com/irgolic/orange3/README-shields/distribute/orange-example-tall.png" alt="Example Workflow">
+    </a>
+</p>
 
-[![Discord Chat](https://img.shields.io/discord/633376992607076354?style=for-the-badge&logo=discord&color=orange&labelColor=black)](https://discord.gg/FWrfeXV)
-[![build: passing](https://img.shields.io/travis/biolab/orange3?style=for-the-badge&labelColor=black)](https://travis-ci.org/biolab/orange3)
-[![codecov](https://img.shields.io/codecov/c/github/biolab/orange3?style=for-the-badge&labelColor=black)](https://codecov.io/gh/biolab/orange3)
+[Orange]: https://orange.biolab.si/
 
-[Orange] is a component-based data mining software. It includes a range of data
-visualization, exploration, preprocessing and modeling techniques. It can be
-used through a nice and intuitive user interface or, for more advanced users,
-as a module for the Python programming language.
+## Contributing
 
-This is the latest version of Orange (for Python 3). The deprecated version of Orange 2.7 (for Python 2.7) is still available ([binaries] and [sources]).
+[![GitHub Actions](https://img.shields.io/endpoint.svg?url=https%3A%2F%2Factions-badge.atrox.dev%2Fbiolab%2Forange3%2Fbadge&label=build)](https://actions-badge.atrox.dev/biolab/orange3/goto)
+[![codecov](https://img.shields.io/codecov/c/github/biolab/orange3)](https://codecov.io/gh/biolab/orange3)
+[![Contributor count](https://img.shields.io/github/contributors-anon/biolab/orange3)](https://github.com/biolab/orange3/graphs/contributors)
+[![Latest GitHub commit](https://img.shields.io/github/last-commit/biolab/orange3)](https://github.com/biolab/orange3/commits/master)
 
-[Orange]: https://orange.biolab.si/
-[binaries]: https://orange.biolab.si/orange2/
-[sources]: https://github.com/biolab/orange2
+Want to get involved? Join us on [![Discord](https://img.shields.io/discord/633376992607076354?logo=discord&color=7389D8&logoColor=white&label=Discord)](https://discord.gg/FWrfeXV), introduce yourself in #general!
+
+Take a look at our [contributing guide](https://github.com/irgolic/orange3/blob/README-shields/CONTRIBUTING.md), it might answer some questions, and it outlines the standards we adhere to.
+
+Check out our widget development [![docs](https://readthedocs.org/projects/orange-widget-base/badge/?version=latest)](https://orange-widget-base.readthedocs.io/en/latest/?badge=latest) for a comprehensive guide on writing Orange widgets.
+
+If you're looking for a good starting point, check out our [![good first issues](https://img.shields.io/github/issues/biolab/orange3/good%20first%20issue?label=good%20first%20issues)](https://github.com/biolab/orange3/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22).
+
+
+### The Orange Ecosystem
+
+The development of Orange is primarily split into three repositories:
+
+[biolab/orange-canvas-core](https://www.github.com/biolab/orange-canvas-core) implements canvas elements,  
+[biolab/orange-widget-base](https://www.github.com/biolab/orange-widget-base) implements a widget window's interface elements,  
+[biolab/orange3](https://www.github.com/biolab/orange3) brings it all together and implements the base data mining toolbox.	
+
+Additionally, add-ons implement additional widgets for more specific use cases. [Anyone can write an add-on.](https://github.com/biolab/orange3-example-addon) Below is a list of our first-party add-ons:
+
+[biolab/orange3-text](https://www.github.com/biolab/orange3-text)    
+[biolab/orange3-bioinformatics](https://www.github.com/biolab/orange3-bioinformatics)    
+[biolab/orange3-timeseries](https://www.github.com/biolab/orange3-timeseries)    
+[biolab/orange3-single-cell](https://www.github.com/biolab/orange3-single-cell)    
+[biolab/orange3-imageanalytics](https://www.github.com/biolab/orange3-imageanalytics)    
+[biolab/orange3-educational](https://www.github.com/biolab/orange3-educational)    
+[biolab/orange3-geo](https://www.github.com/biolab/orange3-geo)    
+[biolab/orange3-associate](https://www.github.com/biolab/orange3-associate)    
+[biolab/orange3-network](https://www.github.com/biolab/orange3-network)
+
+### Setting up
+
+1. Set up a __virtual environment__. We recommend [Miniconda](https://docs.conda.io/en/latest/miniconda.html).  
+`conda create python=3 --name orange3`
+2. __Fork__ your chosen repository.  
+Press the fork button in top-right corner of the page
+3. __Clone__ it.   
+`git clone ssh://[email protected]/<your-username>/<repo-name>`
+4. __Install__ it.  
+`pip install -e .` or `python setup.py develop`
+
+Now you're ready to work with git. See GitHub's guides on [pull requests](https://docs.github.com/en/free-pro-team@latest/github/collaborating-with-issues-and-pull-requests/proposing-changes-to-your-work-with-pull-requests), [forks](https://docs.github.com/en/free-pro-team@latest/github/collaborating-with-issues-and-pull-requests/working-with-forks) if you're unfamiliar.  
+If you're having trouble, get in touch on [![Discord](https://img.shields.io/discord/633376992607076354?logo=discord&color=7389D8&logoColor=white&label=Discord)](https://discord.gg/FWrfeXV).
+
+## Installing
 
+For easy installation, [![Download](https://img.shields.io/github/v/release/biolab/orange3?label=download)](https://orange.biolab.si/download) the latest released Orange version from our website.
 
-Installing with Miniconda / Anaconda
-------------------------------------
+### Installing with Miniconda / Anaconda
 
 Orange requires Python 3.6 or newer.
 
@@ -49,8 +106,7 @@ conda install orange3-<addon name>
 
 See specific add-on repositories for details.
 
-Installing with pip
--------------------
+### Installing with pip
 
 To install Orange with pip, run the following.
 
@@ -67,17 +123,15 @@ source orange3venv/bin/activate
 pip install orange3
 ```
 
-Installing with winget (Windows only)
--------------------------------------
+### Installing with winget (Windows only)
 
 To install Orange with [winget](https://docs.microsoft.com/en-us/windows/package-manager/winget/), run:
 
 ```Shell
 winget install --id  UniversityofLjubljana.Orange 
 ```
 
-Starting Orange GUI
--------------------
+### Starting Orange GUI
 
 To start Orange GUI from the command line, run: