I tried to follow to install Kolibri 0.13 image using Quick start documentation. Everything worked except I missed noting the login userid and password documented in the Warning box. I was focused on following steps 1-4 (repeatedly). Never went back to the Warning box. I tried various combinations of typical Linux/Raspbian administrator login credentials. I was completed frustrated. A contact helped me to try a couple of things and I managed to login. Later on, I noticed the Warning box. I would like to suggest that the documentation should add step 5 with the default (initial) login credentials. This is more logical and easy for beginners to follow and save frustration.