Moodle login page instructions

The instructions that appear on the Moodle login page are stored in the Moodle configuration property auth_instructions. You can edit them from Site Administration > Plugins > Authentication > Manage Authentication (instructions).

In the database, look for auth_instructions in the mdl_config table (e.g select * from mdl_config where name = 'auth_instructions') and change the value (which can be HTML).

You may need to purge your Moodle cache to see changes.