diff --git a/README.md b/README.md
index 3457574d3a39967ceacd5ab6a4290c7c294e09b3..eb87ddaee0a59a4a10f46b12f6627ba9c2e90da3 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,13 @@ Environment variables:
 
 
 Important: Mount your local host machines image directory as volume in the container as /app/images.
+In this example:
+
+    -v $(pwd)/images:/app/images 
+mounts the local directory ./images into the container at /app/images.
+
+    $(pwd) 
+gets the current working directory, and you can replace it with the absolute path to your local directory.
 
 The VALID_EXTENSIONS environment variable is expected to be a comma-separated list of valid file extensions (e.g., .jpg,.png,.jp2).