diff --git a/README.md b/README.md
index 9cdc1ff..a3ebc12 100644
--- a/README.md
+++ b/README.md
@@ -90,11 +90,13 @@ To use this option add the optional environmental variable as detailed above to
 
 This image contains the [kepubify](https://pgaskin.net/kepubify/) ebook conversion tool (MIT License) to convert epub to kepub.  In the Calibre-Web admin page (Basic Configuration:External Binaries) set the **Path to Kepubify E-Book Converter** to `/usr/bin/kepubify`
 
- 
 ## Usage
 
 To help you get started creating a container from this image you can either use docker-compose or the docker cli.
 
+>[!NOTE]
+>Unless a parameter is flaged as 'optional', it is *mandatory* and a value must be provided.
+
 ### docker-compose (recommended, [click here for more info](https://docs.linuxserver.io/general/docker-compose))
 
 ```yaml
@@ -138,7 +140,7 @@ Containers are configured using parameters passed at runtime (such as those abov
 
 | Parameter | Function |
 | :----: | --- |
-| `-p 8083` | WebUI |
+| `-p 8083:8083` | WebUI |
 | `-e PUID=1000` | for UserID - see below for explanation |
 | `-e PGID=1000` | for GroupID - see below for explanation |
 | `-e TZ=Etc/UTC` | specify a timezone to use, see this [list](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones#List). |