Issue #26: add a clarification in the README about dot-directories

README.md

@@ -83,7 +83,7 @@ Fencer-specific environment variables are:
 - `RUNTIME_IGNOREDOTFILES` - A flag indicating whether to ignore files
   with names starting with a dot (hidden files on Linux-based systems
   and macOS). It can be `True` or `False`. The default value is
-  `False`.
+  `False`. Directories with names starting in a dot are not ignored.
 - `GRPC_PORT` - The port to run the gRPC server on. Default is 8081.
 
 ## Developing