minor readme changes

README.md

@@ -72,17 +72,17 @@ otree_users:
     # app_repo: "https://github.com/oTree-org/oTree.git"  
 ```
 
-### Get the otree project on your server
+### get the otree project on your server
 
-#### Option A: upload otree project directly into ansible project
+#### option A: upload otree project directly into ansible project
 1. If no git-repository ``app_repo``-value with your otree configuration is provided, you have to place a copy of the project files (with scp) in ``files/<otree_username>/``.
 
-#### Option B: clone via git and provide ssh keys
+#### option B: clone via git and provide ssh keys
 1. If git-repository ``app_repo`` is provided and the repo is private you have to setup key authentication.
 2. Generate a public-private key pair in the ansible project ``keys/<otree_instance_name>/`` with ``ssh-keygen -f id -t ed25519 -N '' -a 100``
 3. Upload public key in your git provider (GitLab: User Settings->SSH Keys) and make sure you have access to the specified project in ``app_repo``
 
-And now run the playbook.
+Make sure your ``requirements.txt`` contains "otree==your_desired_version". And now you are ready to run the playbook.
 
 ## change the configuration
 1. Adapt your inventory-config again with ``nano /opt/otree/otree-ansible/group_vars/otree_servers.yml`` and run the playbook.
@@ -93,11 +93,11 @@ And now run the playbook.
 
 ## FAQ
 
-### There is an error with redis in apt installation
-Solution: Disable ipv6 in ``/etc/redis/redis.conf``
-
 ### For which operating system is this ansible script optimized?
 Currently only Ubuntu 18.04.03 LTS with Python 3.6/3.7 is tested and targeted.
 
+### There is an error with redis in apt installation on systems with ipv6 disabled.
+Solution: Disable IPV6 also in ``/etc/redis/redis.conf``: ``bind 127.0.0.1``.
+
 ### Are there plans for a GUI?
 Currently not, but feel free to do feature requests.