Add docs for installing via winget (#1171)

docs/modules/pkl-cli/pages/index.adoc

@@ -2,6 +2,7 @@
 include::ROOT:partial$component-attributes.adoc[]
 :uri-homebrew: https://brew.sh
 :uri-mise: https://mise.jdx.dev
+:uri-winget: https://learn.microsoft.com/en-us/windows/package-manager/
 
 :uri-pkl-macos-amd64-download: {uri-sonatype-snapshot-download}&a=pkl-cli-macos-amd64&e=bin
 :uri-pkl-macos-aarch64-download: {uri-sonatype-snapshot-download}&a=pkl-cli-macos-aarch64&e=bin
@@ -107,6 +108,31 @@ ifndef::is-release-version[]
 For instructions, switch to a release version of this page.
 endif::[]
 
+[[winget]]
+=== Windows Package Manager
+
+On Windows, release versions can be installed with {uri-winget}[Windows Package Manager].
+
+ifdef::is-release-version[]
+To install Pkl, run:
+
+[source,shell]
+----
+winget install Apple.Pkl
+----
+
+To update Pkl, run:
+
+[source,shell]
+----
+winget upgrade Apple.Pkl
+----
+endif::[]
+
+ifndef::is-release-version[]
+For instructions, switch to a release version of this page.
+endif::[]
+
 [[download]]
 === Download