Update docker port from --expose to -p for live previews (#3)

Author: leemthompo

.vscode/tasks.json

@@ -16,7 +16,7 @@
         {
             "label": "Serve Documentation",
             "type": "shell",
-            "command": "docker run -v \"./.git:/app/.git\" -v \"./docs:/app/docs\" -v \"./.artifacts:/app/.artifacts\" --expose 8080 ghcr.io/elastic/docs-builder:edge serve",
+            "command": "docker run -v \"./.git:/app/.git\" -v \"./docs:/app/docs\" -v \"./.artifacts:/app/.artifacts\" -p 8080:8080 ghcr.io/elastic/docs-builder:edge serve",
             "problemMatcher": [],
             "group": {
                 "kind": "build",

README.md

@@ -38,6 +38,5 @@ docker run -v "./.git:/app/.git" -v "./docs:/app/docs" -v "./.artifacts:/app/.ar
 ### Live mode
 
 ```bash
-docker run -v "./.git:/app/.git" -v "./docs:/app/docs" -v "./.artifacts:/app/.artifacts" \
-  --expose 8080 ghcr.io/elastic/docs-builder:edge serve
+docker run -v "./.git:/app/.git" -v "./docs:/app/docs" -v "./.artifacts:/app/.artifacts" -p 8080:8080 ghcr.io/elastic/docs-builder:edge serve
 ```