(DOCS) Update dsc config reference for parameters over stdin

This change updates the reference documentation for the
`dsc config` command and subcommands to demonstrate the
syntax for passing parameters to a command from stdin.

Author: michaeltlombardi

docs/reference/cli/config/export.md

@@ -31,6 +31,18 @@ dsc config export [Options] --input <INPUT>
 cat <FILE> | dsc config export [Options] --file -
 ```
 
+### Configuration document from file with parameters from stdin
+
+```sh
+cat <PARAMETERS_FILE> | dsc config --parameters-file - export [Options] --file <FILE>
+```
+
+### Configuration document from option string with parameters from stdin
+
+```sh
+cat <PARAMETERS_FILE> | dsc config --parameters-file - export [Options] --input <INPUT>
+```
+
 ## Description
 
 The `export` subcommand generates a configuration document that includes every instance of a set of

docs/reference/cli/config/get.md

@@ -31,6 +31,18 @@ dsc config get [Options] --input <INPUT>
 cat <FILE> | dsc config get [Options] --file -
 ```
 
+### Configuration document from file with parameters from stdin
+
+```sh
+cat <PARAMETERS_FILE> | dsc config --parameters-file - get [Options] --file <FILE>
+```
+
+### Configuration document from option string with parameters from stdin
+
+```sh
+cat <PARAMETERS_FILE> | dsc config --parameters-file - get [Options] --input <INPUT>
+```
+
 ## Description
 
 The `get` subcommand returns the actual state of the resource instances in a configuration

docs/reference/cli/config/index.md

@@ -78,6 +78,11 @@ for that parameter.
 
 This option is mutually exclusive with the `--parameters` option.
 
+Starting with DSC version 3.1.0, you can pass the parameters data to a subcommand over stdin. When
+you do, you must pass the configuration document as an input string or the path to a file on the
+system. You can't pass both the parameters file and the configuration document to a command from
+stdin.
+
 For more information about defining parameters in a configuration document, see
 [DSC Configuration document parameter schema][06]. For more information about using parameters in
 configuration document, see the [parameters function reference][07].

docs/reference/cli/config/set.md

@@ -31,6 +31,19 @@ dsc config set [Options] --input <INPUT>
 cat <FILE> | dsc config set [Options] --file -
 ```
 
+### Configuration document from file with parameters from stdin
+
+```sh
+cat <PARAMETERS_FILE> | dsc config --parameters-file - set [Options] --file <FILE>
+```
+
+### Configuration document from option string with parameters from stdin
+
+```sh
+cat <PARAMETERS_FILE> | dsc config --parameters-file - set [Options] --input <INPUT>
+```
+
+
 ## Description
 
 The `set` subcommand enforces the desired state of the resource instances in a configuration

docs/reference/cli/config/test.md

@@ -31,6 +31,18 @@ dsc config test [Options] --input <INPUT>
 cat <FILE> | dsc config test [Options] --file -
 ```
 
+### Configuration document from file with parameters from stdin
+
+```sh
+cat <PARAMETERS_FILE> | dsc config --parameters-file - test [Options] --file <FILE>
+```
+
+### Configuration document from option string with parameters from stdin
+
+```sh
+cat <PARAMETERS_FILE> | dsc config --parameters-file - test [Options] --input <INPUT>
+```
+
 ## Description
 
 The `test` subcommand verifies whether the resource instances in a configuration document are in