diff --git a/README.md b/README.md
index 2d234f9..1ad181a 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,15 @@
-nextcloud
-===============
+# nextcloud
 
-docker compose for nextcloud docker image
\ No newline at end of file
+docker compose for https://github.com/nextcloud/docker/
+
+## apache2 revers proxy
+
+### dependencies
+```
+sudo a2enmod proxy_fcgi
+```
+
+### first start
+```
+mkdir data/www
+```
diff --git a/backup.sh b/backup.sh
index 0975b6d..902f153 100755
--- a/backup.sh
+++ b/backup.sh
@@ -20,7 +20,7 @@
 rm ${dbFile}
 
 # backup repositories
-tar -cj data/cloud -f "${backupDir}/cloud/${currentDate}.tbz2"
+tar -cj data/cloud nextcloud.conf -f "${backupDir}/cloud/${currentDate}.tbz2"
 
 # backup config files
 tar -cj data/conf -f "${backupDir}/conf/${currentDate}.tbz2"
diff --git a/docker-compose.yml b/docker-compose.yml
index 8034c70..f5be022 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -20,6 +20,7 @@
       - /tmp
     volumes:
       - ./data/cloud/:/srv/cloud/
+      - ./data/www/:/var/www/html/
     networks:
       nextcloud-network:
         ipv4_address: 172.22.5.100