diff --git a/README.md b/README.md
index 9f82b59..3c208ca 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,10 @@ Drone plugin to build multiarch Docker images
 
 Drone plugin to build multiarch Docker images.
 
+## Docker Tags
+
+Tags are following the main Docker version e.g. `19`, the second part is reflecting the plugin "version". A full example would be `19.5`.
+
 ## Build
 
 Build the binary with the following command: