Add password file field to document (#605)

Signed-off-by: tottoto <tottotodev@gmail.com>

diff --git a/CONFIGURATION.md b/CONFIGURATION.md
index 93d3bb8ea01a8741eea1447ffcf833a5b46fb3da..ec40685836bd7fe106a7dfc6576d01b48e6567a8 100644 (file)
--- a/CONFIGURATION.md
+++ b/CONFIGURATION.md
@@ -82,6 +82,7 @@ The other placeholders are specified separately.
   basic_auth:
     [ username: <string> ]
     [ password: <secret> ]
+    [ password_file: <filename> ]
 
   # The bearer token for the targets.
   [ bearer_token: <secret> ]