Changed image and removed tensorflow references

jupyter-pytorch-notebook/Dockerfile

@@ -1,9 +1,9 @@
 
 # Use a GPU-enabled base image based on the recommendation from
 # https://jupyter-docker-stacks.readthedocs.io/en/latest/using/selecting.html#gpu-accelerated-notebooks
-# As this combines the tensorflow-notebook and the cuda-notebook, so we only
+# As this combines the pytorch-notebook and the cuda-notebook, so we only
 # need to install the additional packages for each course.
-FROM cschranz/gpu-jupyter:v1.5_cuda-11.6_ubuntu-20.04_python-only
+FROM cschranz/gpu-jupyter:v1.7_cuda-12.3_ubuntu-22.04_python-only
 
 USER root
 # The base image only gets updated when a new version of CUDA is released.
@@ -15,7 +15,6 @@ RUN apt-get update && \
 
 USER ${NB_UID}
 
-# Required for Tensorboard on a remote container
 RUN mamba install --yes \
     'jupyter-server-proxy' && \
     # SciML requirements