chore: fix up docs placeholders

docs/docs/administration/reverse-proxy.md

@@ -112,7 +112,7 @@ services:
       traefik.enable: true
       # increase readingTimeouts for the entrypoint used here
       traefik.http.routers.immich.entrypoints: websecure
-      traefik.http.routers.immich.rule: Host(`immich.your-domain.com`)
+      traefik.http.routers.immich.rule: Host(`immich.example.com`)
       traefik.http.services.immich.loadbalancer.server.port: 2283
 ```
 

docs/docs/administration/server-commands.md

@@ -90,7 +90,7 @@ immich-admin list-users
 [
   {
     id: 'e65e6f88-2a30-4dbe-8dd9-1885f4889b53',
-    email: 'immich@example.com.com',
+    email: 'immich@example.com',
     name: 'Immich Admin',
     storageLabel: 'admin',
     externalPath: null,

docs/docs/guides/database-gui.md

@@ -17,7 +17,7 @@ services:
     ports:
       - "8888:80"
     environment:
-      PGADMIN_DEFAULT_EMAIL: user-name@domain-name.com
+      PGADMIN_DEFAULT_EMAIL: admin@example.com
       PGADMIN_DEFAULT_PASSWORD: strong-password
     volumes:
       - pgadmin-data:/var/lib/pgadmin