Added readme.
---
pleroma_user: "pleroma"
pleroma_host: "localhost"
pleroma_port: 4000
pleroma_scheme: "http"
pleroma_proxy_pass: "{{pleroma_scheme}}://{{pleroma_host}}:{{pleroma_port}}"
pleroma_link_host: "localhost"
pleroma_link_port: "443"
pleroma_link_scheme: "https"
pleroma_instance_name: "{{pleroma_link_host}}"
pleroma_desc: "A Pleroma fediverse instance."
pleroma_admin_email: "admin@{{pleroma_host}}"
pleroma_char_limit: 5000
pleroma_signup_open: "true"
pleroma_db_host: "localhost"
pleroma_db_superuser: "postgres"