fix: Docker Compose README (#1403)

* fix: Docker Compose README

* fix: add password requiremnts hint

* fix: note on sudo / docker compose

* fix: add note on UGCUSE3DSERVICES

* fix: reorder

* fix: duplicate word

* fix: move broken line

* fix(compose): enable USER_ENABLE_REGISTER by default

.env.example

@@ -1,9 +1,7 @@
 # Full path to the LEGO Universe client
-CLIENT_PATH=/Users/someuser/LEGO Universe
-# Can improve build time
-BUILD_THREADS=1
+CLIENT_PATH=./client
 # Updates NET_VERSION in CMakeVariables.txt
-BUILD_VERSION=171022
+NET_VERSION=171022
 # make sure this is a long random string
 # grab a "SHA 256-bit Key" from here: https://keygen.io/
 ACCOUNT_MANAGER_SECRET=
@@ -12,6 +10,5 @@ EXTERNAL_IP=localhost
 # Database values
 # Be careful with special characters here. It is more safe to use normal characters and/or numbers.
 MARIADB_USER=darkflame
-MARIADB_PASSWORD=SECRET_VALUE_CHANGE_ME
-MARIADB_ROOT_PASSWORD=SECRET_VALUE_CHANGE_ME
+MARIADB_PASSWORD=
 MARIADB_DATABASE=darkflame