update readme and add pytest

.gitignore

+**.pem
\ No newline at end of file

Base/base.Dockerfile

+ARG UBUNTU_VERSION=20.04
+ARG CUDA = 10.2
+
+FROM nvidia/cuda${ARCH:+-$ARCH}:${CUDA}.1-base-ubuntu${UBUNTU_VERSION} as base
+

JupyterLab/requirements.txt

@@ -11,3 +11,4 @@ wandb
 ipywidgets
 tqdm
 pre-commit
+pytest

README.md

@@ -15,6 +15,8 @@ Docker resources for GPULab
 - clone this repo as a submodule in the `.devcontainer` folder
 - configure the `.devcontainer.json` to build the desired docker file
 
+- alternatively, use 'image': 'gitlab.ilabt.imec.be:4567/tlips/gpulab/jupyterlab-pytorch:latest' to avoid the need for submodules if you do not want to be able to alter the container. (no auth?)
+
 To enable GPU on local devices: install the [nvidia docker toolkit](https://github.com/NVIDIA/nvidia-docker) and pass the `--gpus all` arg to docker to allow for discovering the GPUs. The nvidia toolkit will use the on-device drivers while installing the cuda toolkit in the container. To validate if the gpus are enabled, run the `nvidia-smi` command in the container.
 ## IDLab JupyterHub:
 - use `gitlab+deploy-token-8:YHsqg1MHW-C4GJpr_B-D@gitlab.ilabt.imec.be:4567/tlips/gpulab/jupyterlab-pytorch:latest` as custom docker image.