Added development information (#927)

README.md

@@ -3,3 +3,7 @@
 ## TODO
 
 - Re-write readme file for new project structure
+
+## Contributing
+
+Information on setting up diyHue as a development environment can be found in our docs.

docs/development-environment.md

@@ -0,0 +1,64 @@
+# Set up Development Environment
+
+You'll need to set up a development environment if you want to develop a new feature or component
+for diyHue. Read on to learn how to set up.
+
+## Developing with Visual Studio Code + devcontainer
+
+The easiest way to get started with development is to use Visual Studio Code with devcontainers.
+This approach will create a preconfigured development environment with all the tools you need.
+(Learn more about devcontainers)[https://code.visualstudio.com/docs/devcontainers/containers]
+
+### Prerequisites
+
+* (Docker)[https://docs.docker.com/get-docker/]
+* (Visual Studio Code)[https://code.visualstudio.com/]
+* (Git)[https://git-scm.com/]
+
+### Getting started
+
+1. Go to (diyHue repository)[https://github.com/diyhue/diyHue] and click _fork_.
+2. Once your fork is created, clone the repository to your local environment.
+3. Open the cloned folder in Visual Studio Code
+4. Run the Dev Containers: Open Folder in Container... command from the Command Palette (F1) or
+   quick actions Status bar item.
+   (More information can be found in the official documentation)[https://code.visualstudio.com/docs/devcontainers/containers]
+5. The Dev Container image will then be built (this may take a few minutes), after this your
+   development environment will be ready.
+
+In the future, if you want to get back to your development environment: open Visual Studio Code,
+click on the "Remote Explorer" button in the sidebar, select "Containers" at the top of the sidebar.
+
+## Setup Local Repository
+
+ Go to (diyHue repository)[https://github.com/diyhue/diyHue] and click _fork_. Once forked, setup
+ your local copy of the source using the commands:
+
+ ```
+ git clone https://github.com/YOUR_GIT_USERNAME/diyHue.git
+ cd diyHue
+ git remote add upstream https://github.com/diyhue/diyHue.git
+ ```
+
+ install the requirements with a provided script named `setup`.
+
+ ```
+ script/setup
+ ```
+
+ This will create a virtual environment and install all necessary requirements. You're now set!
+
+ Each time you start a new terminal session, you will need to activate your virtual environment:
+
+ ```
+ source venv/bin/activate
+ ```
+
+ After that you can run diyHue like this:
+
+```
+diyhue -c config
+```
+
+The diyHue configuration is stored in the `config` directory in your repository.
+