diff --git a/README.md b/README.md
index 0399570..3ddaac3 100644
--- a/README.md
+++ b/README.md
@@ -73,11 +73,13 @@ You can explicitly set the amount of memory Ubooquity is allowed to use (be care
 
 If no value is set it will default to 512MB.
 
- 
 ## 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
@@ -127,8 +129,8 @@ Containers are configured using parameters passed at runtime (such as those abov
 
 | Parameter | Function |
 | :----: | --- |
-| `-p 2202` | The library port. |
-| `-p 2203` | The admin port. |
+| `-p 2202:2202` | The library port. |
+| `-p 2203:2203` | The admin port. |
 | `-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). |