diff --git a/README.md b/README.md
index 07096a6264d59d9473e71ee73f86da42850be621..56433b0720a251cedd989500ddc1cca23e06b733 100755
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ Note: Use ``scp mycert.crt user@host:/home/user/`` and ``scp mycert.key user@hos
 
 ``git clone https://gitlab.rrz.uni-hamburg.de/bax1489/otree-ansible.git /opt/otree/otree-ansible/``
 
-### relocate postgres db, if you're not using your root disk 
+### [relocate postgres db, if you're not using your root disk](https://www.digitalocean.com/community/tutorials/how-to-move-a-postgresql-data-directory-to-a-new-location-on-ubuntu-18-04)
 
 ## change the configuration of the desired otree server with all installed instances
 After setting your desired configuration you are ready to run the playbook.
@@ -107,8 +107,8 @@ otree_users:
 ### I see "TypeError: __init__() missing 1 required positional argument: 'on_delete'"?
 Most likely an older otree version has to be configured. Set ``otree==<desired_version>`` in ``requirements_base.txt``. Since Django 2.0 the "on_delete" parameter is required in a model and needs to be added in your code or in the included apps (e.g otree-tools).
 
-### I see "ModuleNotFoundError: No module named '<someexperimentname>'"?
-Remove the definition in variable ``SESSION_CONFIGS`` from ``settings.py``.
+### I see "ModuleNotFoundError: No module named '``<someexperimentname>``'"?
+Remove the definition in variable ``SESSION_CONFIGS`` from ``settings.py```or add the corresponding code to your otree project.
 
 ### I see "ModuleNotFoundError: No module named 'otree_tools'"?
 Add ``otree_tools==<desired_version>`` in ``requirements_base.txt``.