Document the arm64 parameter

ethomson · ethomson · commit ec1c356f0526 · 2023-02-23T03:22:44.000-08:00
diff --git a/build.libgit2.ps1 b/build.libgit2.ps1
@@ -11,6 +11,8 @@
     If set, the x64 version will be built.
 .PARAMETER arm64
     If set, the arm64 version will be built.
+.PARAMETER arm64
+    If set, the arm64 version will be built.
 #>
 
 Param(
