message: add anaconda usage to documentation
diff: @@ -17,6 +17,8 @@ This section describes the prerequisites and installation-steps of BARK.
  ## Setup on Linux
  +Optional: We recommend to use Anaconda. This way, you can create a clean python environment. After installation, create a conda env `conda create --name bark_python_env python=3.7` and follow with activating it: `conda activate bark_python_env`. You can now proceed with the following:
  +
  1. Use `git clone https://github.com/bark-simulator/bark.git` or download the repository from this page.
  2. Run `bash install.sh`: creates a virtual environment (located in python/venv) and installs all python packages
  2. Run `source dev_into.sh`: activates the virtual environment (make sure to run this before bazel)
  