fix key file name

code/backup_rsync_git.env

@@ -1,7 +1,7 @@
 # Remote rsync source. Example: backup@example.com:/srv/data/project/
 RSYNC_SOURCE="boogie@eukelade.uberspace.de:/home/boogie/nextcloud_data/root/files/Obsidian"
 # SSH key file used by rsync/ssh
-SSH_KEY_FILE="~/.ssh/backup_rsync"
+SSH_KEY_FILE="~/.ssh/obsidian-backup"
 
 
 # Local sync destination (must be a directory inside GIT_REPO_DIR)