diff --git a/docker/Dockerfile b/docker/Dockerfile
index 5578db8..54e5510 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -15,9 +15,9 @@ RUN conda install -y -c conda-forge \
 ARG username
 ARG userid
 
-RUN adduser ${username} --uid ${userid} --gecos '' --disabled-password && \
-	echo "${username} ALL=(root) NOPASSWD:ALL" > /etc/sudoers.d/${username} && \
-	chmod 0440 /etc/sudoers.d/${username}
+RUN adduser ${username} --uid ${userid} --gecos '' --disabled-password \
+	&& echo "${username} ALL=(root) NOPASSWD:ALL" > /etc/sudoers.d/${username} \
+	&& chmod 0440 /etc/sudoers.d/${username}
 
 ENV HOME /home/${username}
 
@@ -30,29 +30,41 @@ RUN jupyter contrib nbextension install --user
 RUN jupyter nbextension enable toc2/main
 
 
-# INFO: Have RUN command below uncommented to for easy and constant URL (just localhost:8888)
-#       (by setting empty password instead of using a token)
-#       To avoid making a security hole the best would be to regenerate a hash for
-#       your own non-empty password and to replace the hash below.
-#       You can compute a password hash in the notebook, just run the code:
+# INFO: Uncomment the RUN command below for easy and constant notebook URL (just localhost:8888)
+#       That will switch jupyter to using empty password instead of a token.
+#       To avoid making a security hole you SHOULD in fact not only uncomment but
+#       regenerate the hash for your own non-empty password and replace the hash below.
+#       You can compute a password hash in any notebook, just run the code:
 #          from notebook.auth import passwd
 #          passwd()
-RUN mkdir -p ${HOME}/.jupyter && \
-	echo 'c.NotebookApp.password = u"sha1:c6bbcba2d04b:f969e403db876dcfbe26f47affe41909bd53392e"' \
-	>> ${HOME}/.jupyter/jupyter_notebook_config.py
+#       and take the hash from the output
+#RUN mkdir -p ${HOME}/.jupyter && \
+#	echo 'c.NotebookApp.password = u"sha1:c6bbcba2d04b:f969e403db876dcfbe26f47affe41909bd53392e"' \
+#	>> ${HOME}/.jupyter/jupyter_notebook_config.py
+
+# INFO: Uncomment the RUN command below to disable git diff paging
+#RUN git config --global core.pager ''
 
 
 # INFO: Below - work in progress, nbdime not totally integrated, still it enables diffing
-#       notebooks via nbdiff after connecting to container by "make exec" (docker exec)
-#  Use:
+#       notebooks with nbdiff (and nbdiff support in git diff command) after connecting to
+#       the container by "make exec" (docker exec)
+#  Try:
 #      nbd NOTEBOOK_NAME.ipynb
 #    to get nbdiff between checkpointed version and current version of the given notebook
 USER root
 WORKDIR /
+
 RUN conda install -y -c conda-forge nbdime
+
 USER ${username}
 WORKDIR ${HOME}/handson-ml
 
+RUN git-nbdiffdriver config --enable --global
+
+# INFO: Uncomment the RUN command below to ignore metadata in nbdiff within git diff
+#RUN git config --global diff.jupyternotebook.command 'git-nbdiffdriver diff --ignore-metadata'
+
 
 COPY docker/bashrc /tmp/bashrc
 RUN cat /tmp/bashrc >> ${HOME}/.bashrc
diff --git a/docker/README.md b/docker/README.md
index 57580aa..50b6f12 100644
--- a/docker/README.md
+++ b/docker/README.md
@@ -22,7 +22,7 @@ After the process is finished you have a `handson-ml` image, that will be the ba
 
 ### Run the notebooks
 
-Run `make run` (or just `docker-compose up`) to start the jupyter server inside the container (also named `handson-ml`, same as image). Just point your browser to <http://localhost:8888> (empty password) or the URL printed on the screen and you're ready to play with the book's code!
+Run `make run` (or just `docker-compose up`) to start the jupyter server inside the container (also named `handson-ml`, same as image). Just point your browser to the URL printed on the screen (or just <http://localhost:8888> if you enabled password authentication) and you're ready to play with the book's code!
 
 The server runs in the directory containing the notebooks, and the changes you make from the browser will be persisted there.
 
@@ -34,5 +34,7 @@ Run `make exec` (or `docker-compose exec handson-ml bash`) while the server is r
 
 One of the usefull things that can be done there may be comparing versions of the notebooks using the `nbdiff` command if you haven't got `nbdime` installed locally (it is **way** better than plain `diff` for notebooks). See [Tools for diffing and merging of Jupyter notebooks](https://github.com/jupyter/nbdime) for more details.
 
+You can see changes you made relative to the version in git using `git diff` which is integrated with `nbdiff`.
+
 You may also try `nbd NOTEBOOK_NAME.ipynb` command (custom, see bashrc file) to compare one of your notebooks with its `checkpointed` version.<br/>
 To be precise, the output will tell you *what modifications should be re-played on the **manually saved** version of the notebook (located in `.ipynb_checkpoints` subdirectory) to update it to the **current** i.e. **auto-saved** version (given as command's argument - located in working directory)*.