Fix more typos in ref article (#11594)

Author: sdwheeler

reference/5.1/Microsoft.PowerShell.Core/About/about_Ref.md

@@ -17,9 +17,9 @@ Describes how to create and use a reference type variable.
 You can pass variables to functions _by reference_ or _by value_. When you pass
 a variable _by value_, you are passing a copy of the data. When you pass a
 variable _by reference_, you are passing a reference to the original value.
-This allows the function to change the value of the variable that is passed to
-it.Reference types are created using `[ref]`, which is the type accelerator for
-the `[System.Management.Automation.PSReference]` type.
+This allows the function to change the value of the variable that's passed to
+it. Reference types are created using `[ref]`, which is the type accelerator
+for the `[System.Management.Automation.PSReference]` type.
 
 The primary purpose of `[ref]` is to enable passing PowerShell variables by
 reference to .NET method parameters marked as `ref`, `out`, or `in`. You can
@@ -83,14 +83,14 @@ When using references, you must use the `Value` property of the `[ref]` type to
 access your data.
 
 ```powershell
-Function Test([ref]$data)
-{
+function Test {
+    param([ref]$data)
     $data.Value = 3
 }
 ```
 
-To pass a variable to a parameter that expects a reference, you must type
-cast your variable as a reference.
+To pass a variable to a parameter that expects a reference, you must type cast
+your variable as a reference.
 
 > [!IMPORTANT]
 > The brackets and parenthesis are BOTH required.
@@ -183,9 +183,9 @@ Get-ChildItem -File $setPath |
 
 ## Difference between `[ref]` and `[System.Management.Automation.PSReference]`
 
-A reference type variable is created using
-
-Even though `[ref]` is a type accelerator for
+A reference type variable is created using the `[ref]` type accelerator or by
+specifying the `[System.Management.Automation.PSReference]` type directly. Even
+though `[ref]` is a type accelerator for
 `[System.Management.Automation.PSReference]`, they behave differently.
 
 - When you use `[ref]` to cast a variable, PowerShell creates a reference object

reference/7.4/Microsoft.PowerShell.Core/About/about_Ref.md

@@ -17,9 +17,9 @@ Describes how to create and use a reference type variable.
 You can pass variables to functions _by reference_ or _by value_. When you pass
 a variable _by value_, you are passing a copy of the data. When you pass a
 variable _by reference_, you are passing a reference to the original value.
-This allows the function to change the value of the variable that is passed to
-it.Reference types are created using `[ref]`, which is the type accelerator for
-the `[System.Management.Automation.PSReference]` type.
+This allows the function to change the value of the variable that's passed to
+it. Reference types are created using `[ref]`, which is the type accelerator
+for the `[System.Management.Automation.PSReference]` type.
 
 The primary purpose of `[ref]` is to enable passing PowerShell variables by
 reference to .NET method parameters marked as `ref`, `out`, or `in`. You can
@@ -83,14 +83,14 @@ When using references, you must use the `Value` property of the `[ref]` type to
 access your data.
 
 ```powershell
-Function Test([ref]$data)
-{
+function Test {
+    param([ref]$data)
     $data.Value = 3
 }
 ```
 
-To pass a variable to a parameter that expects a reference, you must type
-cast your variable as a reference.
+To pass a variable to a parameter that expects a reference, you must type cast
+your variable as a reference.
 
 > [!IMPORTANT]
 > The brackets and parenthesis are BOTH required.
@@ -183,9 +183,9 @@ Get-ChildItem -File $setPath |
 
 ## Difference between `[ref]` and `[System.Management.Automation.PSReference]`
 
-A reference type variable is created using
-
-Even though `[ref]` is a type accelerator for
+A reference type variable is created using the `[ref]` type accelerator or by
+specifying the `[System.Management.Automation.PSReference]` type directly. Even
+though `[ref]` is a type accelerator for
 `[System.Management.Automation.PSReference]`, they behave differently.
 
 - When you use `[ref]` to cast a variable, PowerShell creates a reference object

reference/7.5/Microsoft.PowerShell.Core/About/about_Ref.md

@@ -17,9 +17,9 @@ Describes how to create and use a reference type variable.
 You can pass variables to functions _by reference_ or _by value_. When you pass
 a variable _by value_, you are passing a copy of the data. When you pass a
 variable _by reference_, you are passing a reference to the original value.
-This allows the function to change the value of the variable that is passed to
-it.Reference types are created using `[ref]`, which is the type accelerator for
-the `[System.Management.Automation.PSReference]` type.
+This allows the function to change the value of the variable that's passed to
+it. Reference types are created using `[ref]`, which is the type accelerator
+for the `[System.Management.Automation.PSReference]` type.
 
 The primary purpose of `[ref]` is to enable passing PowerShell variables by
 reference to .NET method parameters marked as `ref`, `out`, or `in`. You can
@@ -83,14 +83,14 @@ When using references, you must use the `Value` property of the `[ref]` type to
 access your data.
 
 ```powershell
-Function Test([ref]$data)
-{
+function Test {
+    param([ref]$data)
     $data.Value = 3
 }
 ```
 
-To pass a variable to a parameter that expects a reference, you must type
-cast your variable as a reference.
+To pass a variable to a parameter that expects a reference, you must type cast
+your variable as a reference.
 
 > [!IMPORTANT]
 > The brackets and parenthesis are BOTH required.
@@ -183,9 +183,9 @@ Get-ChildItem -File $setPath |
 
 ## Difference between `[ref]` and `[System.Management.Automation.PSReference]`
 
-A reference type variable is created using
-
-Even though `[ref]` is a type accelerator for
+A reference type variable is created using the `[ref]` type accelerator or by
+specifying the `[System.Management.Automation.PSReference]` type directly. Even
+though `[ref]` is a type accelerator for
 `[System.Management.Automation.PSReference]`, they behave differently.
 
 - When you use `[ref]` to cast a variable, PowerShell creates a reference object