runtime(compiler): add comment for Dispatch

closes: #16854

Signed-off-by: Konfekt <Konfekt@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/compiler/powershell.vim b/runtime/compiler/powershell.vim
index 3d37d7c..d5dd692 100644
--- a/runtime/compiler/powershell.vim
+++ b/runtime/compiler/powershell.vim
@@ -6,6 +6,7 @@
 "		2024 Apr 03 by the Vim Project (removed :CompilerSet definition)
 "		2024 Apr 05 by the Vim Project (avoid leaving behind g:makeprg)
 "		2024 Nov 19 by the Vim Project (properly escape makeprg setting)
+"		2025 Mar 11 by the Vim Project (add comment for Dispatch)
 
 if exists("current_compiler")
   finish
@@ -50,6 +51,8 @@
 "         + CategoryInfo          : ObjectNotFound: (Write-Ouput:String) [], CommandNotFoundException
 "         + FullyQualifiedErrorId : CommandNotFoundException
 
+" CompilerSet makeprg=pwsh
+" CompilerSet makeprg=powershell
 execute 'CompilerSet makeprg=' .. escape(s:makeprg, ' \|"')
 
 " Showing error in context with underlining.