Add --framework argument description (#32867)

* Add --framework argument description

I can use the argument from my CLI. However, the [online docs](https://learn.microsoft.com/en-us/dotnet/core/tools/dotnet-new) don't explain it, although they use the argument in one of the examples.

* Update docs/core/tools/dotnet-new.md

Co-authored-by: Tom Dykstra <[email protected]>

Author: minicatsCB

docs/core/tools/dotnet-new.md

@@ -16,7 +16,7 @@ ms.date: 09/04/2020
 
 ```dotnetcli
 dotnet new <TEMPLATE> [--dry-run] [--force] [-lang|--language {"C#"|"F#"|VB}]
-    [-n|--name <OUTPUT_NAME>] [--no-update-check] 
+    [-n|--name <OUTPUT_NAME>] [-f|--framework <FRAMEWORK>] [--no-update-check]
     [-o|--output <OUTPUT_DIRECTORY>] [--project <PROJECT_PATH>]
     [-d|--diagnostics] [--verbosity <LEVEL>] [Template options]
 
@@ -122,6 +122,10 @@ To activate tab completion for the .NET SDK, see [Enable tab completion](enable-
 
   The name for the created output. If no name is specified, the name of the current directory is used.
 
+- **`-f|--framework <FRAMEWORK>`**
+
+  Specifies the [target framework](../../standard/frameworks.md). It expects a target framework moniker (TFM). Examples: "net6.0", "net7.0-macos". This value will be reflected in the project file.
+
 - **`-no-update-check`**
 
   Disables checking for template package updates when instantiating a template. Available since .NET SDK 6.0.100.