Rename nginx-proxy-manager_notes to nginx-proxy-manager, add docker run equivalent and log volume

Adds a docker run command equivalent to the compose file, splits container
logs out to a separate LOG_PATH volume (they shouldn't be backed up with
the rest of the data), and cleans up README wording.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

nginx-proxy-manager/compose.yml

@@ -0,0 +1,22 @@
+services:
+  proxy:
+    image: ${PROXY_IMAGE:-jc21/nginx-proxy-manager:2.15.0}
+    restart: unless-stopped
+    environment:
+      X_FRAME_OPTIONS: "sameorigin"
+      DB_SQLITE_FILE: "/data/database.sqlite"
+    ports:
+      - "80:80"
+      - "81:81"
+      - "443:443"
+    volumes:
+      - "${VOL_PATH:-/data}/nginx-proxy-manager/data:/data"
+      - "${VOL_PATH:-/data}/nginx-proxy-manager/letsencrypt:/etc/letsencrypt"
+      - "${LOG_PATH:-/var/log/containers/nginx-proxy-manager}:/data/logs"
+    networks:
+      - proxy
+
+networks:
+  proxy:
+    name: proxy
+    driver: bridge