Shorten the README

README.md

@@ -29,19 +29,34 @@ And run locally
 
 	php -S localhost:8000 system/router.php
 
----
 
 ## Upgrading vendors
 
 Since our plugins and themes are in this repository, they are frozen.
 
-So far, Grav itself is safe to update, as well as all plugins but mathjax (until they merge our MR).
+So far, Grav itself is safe to update, as well as all plugins **but mathjax** (until they merge our MR).
 
 Todo: look up .dependencies and perhaps we'll remove the plugins dir altogether from this repository.
 
 The theme `textbook` is tailored for M3P2 courses.
 The plugin `gitlab-markdown-adapter` was expressly made for this Grav instance.
 
+To update Grav you should use the [Grav Package Manager](https://learn.getgrav.org/advanced/grav-gpm) or `GPM`:
+
+```
+$ bin/gpm selfupgrade
+```
+
+To update plugins and themes:
+
+```
+$ bin/gpm update
+```
+
+---
+
+---
+
 ---
 
 # ![](https://avatars1.githubusercontent.com/u/8237355?v=2&s=50) Grav
@@ -67,110 +82,11 @@ The underlying architecture of Grav is designed to use well-established and _bes
 - PHP 5.6.4 or higher. Check the [required modules list](https://learn.getgrav.org/basics/requirements#php-requirements)
 - Check the [Apache](https://learn.getgrav.org/basics/requirements#apache-requirements) or [IIS](https://learn.getgrav.org/basics/requirements#iis-requirements) requirements
 
-# QuickStart
-
-These are the options to get Grav:
-
-### Downloading a Grav Package
-
-You can download a **ready-built** package from the [Downloads page on https://getgrav.org](https://getgrav.org/downloads)
-
-### With Composer
-
-You can create a new project with the latest **stable** Grav release with the following command:
-
-```
-$ composer create-project getgrav/grav ~/webroot/grav
-```
-
-### From GitHub
-
-1. Clone the Grav repository from [https://github.com/getgrav/grav]() to a folder in the webroot of your server, e.g. `~/webroot/grav`. Launch a **terminal** or **console** and navigate to the webroot folder:
-   ```
-   $ cd ~/webroot
-   $ git clone https://github.com/getgrav/grav.git
-   ```
-
-2. Install the **plugin** and **theme dependencies** by using the [Grav CLI application](https://learn.getgrav.org/advanced/grav-cli) `bin/grav`:
-   ```
-   $ cd ~/webroot/grav
-   $ bin/grav install
-   ```
-
-Check out the [install procedures](https://learn.getgrav.org/basics/installation) for more information.
-
-# Adding Functionality
-
-You can download [plugins](https://getgrav.org/downloads/plugins) or [themes](https://getgrav.org/downloads/themes) manually from the appropriate tab on the [Downloads page on https://getgrav.org](https://getgrav.org/downloads), but the preferred solution is to use the [Grav Package Manager](https://learn.getgrav.org/advanced/grav-gpm) or `GPM`:
-
-```
-$ bin/gpm index
-```
-
-This will display all the available plugins and then you can install one or more with:
-
-```
-$ bin/gpm install <plugin/theme>
-```
-
-# Updating
-
-To update Grav you should use the [Grav Package Manager](https://learn.getgrav.org/advanced/grav-gpm) or `GPM`:
-
-```
-$ bin/gpm selfupgrade
-```
-
-To update plugins and themes:
-
-```
-$ bin/gpm update
-```
-
-
-# Contributing
-We appreciate any contribution to Grav, whether it is related to bugs, grammar, or simply a suggestion or improvement! Please refer to the [Contributing guide](CONTRIBUTING.md) for more guidance on this topic.
-
-## Security issues
-If you discover a possible security issue related to Grav or one of its plugins, please email the core team at contact@getgrav.org and we'll address it as soon as possible.
-
-# Getting Started
-
-* [What is Grav?](https://learn.getgrav.org/basics/what-is-grav)
-* [Install](https://learn.getgrav.org/basics/installation) Grav in few seconds
-* Understand the [Configuration](https://learn.getgrav.org/basics/grav-configuration)
-* Take a peek at our available free [Skeletons](https://getgrav.org/downloads/skeletons)
-* If you have questions, jump on our [Discord Chat Server](https://chat.getgrav.org)!
-* Have fun!
-
-# Exploring More
-
-* Have a look at our [Basic Tutorial](https://learn.getgrav.org/basics/basic-tutorial)
-* Dive into more [advanced](https://learn.getgrav.org/advanced) functions
-* Learn about the [Grav CLI](https://learn.getgrav.org/cli-console/grav-cli)
-* Review examples in the [Grav Cookbook](https://learn.getgrav.org/cookbook)
-
-# Backers
-Support Grav with a monthly donation to help us continue development. [[Become a backer](https://opencollective.com/grav#backer)]
-
-<img src="https://opencollective.com/grav/tiers/backers.svg?avatarHeight=36&width=600" />
-
-# Sponsors
-Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/grav#sponsor)]
-
-<img src="https://opencollective.com/grav/tiers/sponsors.svg?avatarHeight=36&width=600" />
 
 # License
 
 See [LICENSE](LICENSE.txt)
 
-
 [gitflow-model]: http://nvie.com/posts/a-successful-git-branching-model/
 [gitflow-extensions]: https://github.com/nvie/gitflow
 
-# Running Tests
-
-First install the dev dependencies by running `composer update` from the Grav root.
-Then `composer test` will run the Unit Tests, which should be always executed successfully on any site.
-Windows users should use the `composer test-windows` command.
-You can also run a single unit test file, e.g. `composer test tests/unit/Grav/Common/AssetsTest.php`