Update README.md

Author: alainabbas

README.md

@@ -2,13 +2,13 @@
 sync a local folder to S3. 
 
 ## Description 
-SyncS3 is a little utlity that watch file changes in a directory and push them in a S3 
-it uses notification of the kernel to see what files are wrote 
+SyncS3 is a little utlity that watch file changes in a directory and push them via S3 or sftp
+it uses notification of the kernel to see what files are wrote (works only on linux)
 
 ## How to use it 
 All is ready in a docker image. You have just to set some parameters 
 
-### docker-compose.yml
+### docker-compose.yml 
 ```
 services: 
  app:
@@ -21,8 +21,8 @@ services:
 ```
 the directory to watch must mounted in volume. In this exemple (for bareos : /home/docker/bareos-sd/data/storage)
 
-### variables 
-fichier .env
+### variables for S3
+file .env
 ```
 ## Endpoint S3 
 S3_ENDPOINT=https://s3.rbx.io.cloud.ovh.net/
@@ -35,8 +35,18 @@ S3_REGION=RBX
 ## bucket
 S3_BUCKET=My-Bucket
 ## dir_source (always /data) mounted volume
-DIR_SOURCE=/data 
+S3_DIR_SOURCE=/data 
 ## Prefix S3 exemple file foo.txt will be named /data-sd1/foo.txt in S3
 S3_DIR_DEST=/data-sd1 
 ```
 
+### variables for sftp
+file .env
+```
+TYPE="sftp"
+SFTP_HOST="mysftp.server.com"
+SFTP_USER="myuser"
+DIR_SOURCE="/data"
+DIR_DEST="/home/myuser/test"
+SFTP_PRIVATE_KEY_FILE="/conf/id_ed25519"
+```