diff --git a/README.md b/README.md
index 6fac1e9..b91beef 100644
--- a/README.md
+++ b/README.md
@@ -78,11 +78,13 @@ git config --global user.email "email address"
 
 How to create the [hashed password](https://github.com/cdr/code-server/blob/master/docs/FAQ.md#can-i-store-my-password-hashed).
 
- 
 ## 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
@@ -134,7 +136,7 @@ Containers are configured using parameters passed at runtime (such as those abov
 
 | Parameter | Function |
 | :----: | --- |
-| `-p 8443` | web gui |
+| `-p 8443:8443` | web gui |
 | `-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). |