Updated README.md

README.md

@@ -4,9 +4,12 @@ Tiny, simple static file server using environment variables for configuration
 Available on Docker Hub at https://hub.docker.com/r/halverneus/static-file-server/
 
 Environment variables with defaults:
-```
+```bash
+# Optional Hostname for binding. Leave black to accept any incoming HTTP request on the prescribed port.
 HOST=
+# If assigned, must be a valid port number.
 PORT=8080
+# Folder with the content to serve.
 FOLDER=/web
 ```
 
@@ -17,6 +20,14 @@ PORT=8888 FOLDER=. ./serve
 Files can then be accessed by going to http://localhost:8888/my/file.txt
 
 ### With Docker
-docker run -d -v /my/folder:/web -e PORT=9090 -p 9090:9090 halverneus/static-file-server:latest
-
+```
+docker run -d -v /my/folder:/web -p 8080:8080 halverneus/static-file-server:latest
+```
 This will serve the folder "/my/folder" over http://localhost:9090/my/file.txt
+
+Any of the variables can also be modified:
+```
+docker run -d -v /home/me/dev/source:/content/html -v /home/me/dev/files:/content/more/files -e FOLDER=/content -p 8080:8080 halverneus/static-file-server:latest
+```
+
+This maybe a cheesy program, but it is convenient and less than 6MB in size.