Update readme

.cspell.jsonc

@@ -2,6 +2,7 @@
   "words": [
     "anypackage",
     "Authenticode",
+    "justingrote",
     "LASTEXITCODE",
     "Nieto",
     "SARIF",

README.md

@@ -1,3 +1,48 @@
 # AnyPackage.Docker
 
-Docker provider for AnyPackage.
+[![gallery-image]][gallery-site]
+[![build-image]][build-site]
+[![cf-image]][cf-site]
+
+[gallery-image]: https://img.shields.io/powershellgallery/dt/AnyPackage.Docker
+[build-image]: https://img.shields.io/github/actions/workflow/status/anypackage/docker/ci.yml
+[cf-image]: https://img.shields.io/codefactor/grade/github/anypackage/docker
+[gallery-site]: https://www.powershellgallery.com/packages/AnyPackage.Docker
+[build-site]: https://github.com/anypackage/docker/actions/workflows/ci.yml
+[cf-site]: https://www.codefactor.io/repository/github/anypackage/docker
+
+`AnyPackage.Docker` is an AnyPackage provider that facilitates managing Docker
+apps.
+
+## Install AnyPackage.Docker
+
+```powershell
+Install-PSResource AnyPackage
+Install-PSResource AnyPackage.Docker -SkipDependencyCheck
+```
+
+## Import AnyPackage.Docker
+
+```powershell
+Import-Module AnyPackage.Docker
+```
+
+## Sample usages
+
+### Get list of installed images
+
+```powershell
+Get-Package -Name nginx
+```
+
+### Install image
+
+```powershell
+Install-Package -Name justingrote/powershell -Version latest -Source ghcr.io
+```
+
+### Uninstall image
+
+```powershell
+Uninstall-Package -Name nginx
+```