address remaining comments.

Author: BillWagner

docs/csharp/tour-of-csharp/tutorials/branches-and-loops.md

@@ -17,13 +17,11 @@ In this tutorial, you:
 > * Work with nested loops.
 > * Combine branches and loops.
 
-To use codespaces, you need a GitHub account. If you don't already have one, you can create a free account at [GitHub.com](https://github.com).
-
 ## Prerequisites
 
 You must have one of the following options:
 
-- A GitHub account to use [GitHub Codespaces](https://github.com/codespaces).
+- A GitHub account to use [GitHub Codespaces](https://github.com/codespaces). If you don't already have one, you can create a free account at [GitHub.com](https://github.com).
 - A computer with the following tools installed:
   - The [.NET 10 SDK](https://dotnet.microsoft.com/download/dotnet/10.0).
   - [Visual Studio Code](https://code.visualstudio.com/download).

docs/csharp/tour-of-csharp/tutorials/hello-world.md

@@ -17,13 +17,11 @@ In this tutorial, you:
 > * Create and use variables to store text data.
 > * Use .NET APIs with text data.
 
-To use Codespaces, you need a GitHub account. If you don't already have one, you can create a free account at [GitHub.com](https://github.com).
-
 ## Prerequisites
 
 You must have one of the following options:
 
-- A GitHub account to use [GitHub Codespaces](https://github.com/codespaces).
+- A GitHub account to use [GitHub Codespaces](https://github.com/codespaces). If you don't already have one, you can create a free account at [GitHub.com](https://github.com).
 - A computer with the following tools installed:
   - The [.NET 10 SDK](https://dotnet.microsoft.com/download/dotnet/10.0).
   - [Visual Studio Code](https://code.visualstudio.com/download).

docs/csharp/tour-of-csharp/tutorials/index.md

@@ -37,9 +37,3 @@ The [List collection](list-collection.md) lesson gives you a tour of the List co
 ## Pattern matching
 
 The [Pattern matching](pattern-matching.md) lesson provides an introduction to *pattern matching*. Pattern matching enables you to compare an expression against a pattern. The success of the match determines which program logic to follow. Patterns can compare types, properties of a type, or contents of a list. You can combine multiple patterns by using `and`, `or`, and `not` logic. Patterns provide a rich vocabulary to inspect data and make decisions in your program based on that inspection.
-
-## Set up your local environment
-
-If you prefer not to complete the tutorials using GitHub Codespaces, you can can up your local environment. You need:```
-
-[!INCLUDE [Prerequisites](../../../../includes/prerequisites-basic-winget.md)]

docs/csharp/tour-of-csharp/tutorials/list-collection.md

@@ -18,13 +18,11 @@ In this tutorial, you:
 > * Modify list contents.
 > * Search and sort lists.
 
-To use codespaces, you need a GitHub account. If you don't already have one, you can create a free account at [GitHub.com](https://github.com).
-
 ## Prerequisites
 
 You must have one of the following:
 
-- A GitHub account to use [GitHub Codespaces](https://github.com/codespaces).
+- A GitHub account to use [GitHub Codespaces](https://github.com/codespaces). If you don't already have one, you can create a free account at [GitHub.com](https://github.com).
 - A computer with the following tools installed:
   - The [.NET 10 SDK](https://dotnet.microsoft.com/download/dotnet/10.0).
   - [Visual Studio Code](https://code.visualstudio.com/download).

docs/csharp/tour-of-csharp/tutorials/numbers-in-csharp.md

@@ -18,13 +18,11 @@ In this tutorial, you:
 > * Learn floating point types.
 > * Learn the decimal type.
 
-To use Codespaces, you need a GitHub account. If you don't already have one, you can create a free account at [GitHub.com](https://github.com).
-
 ## Prerequisites
 
 You must have one of the following:
 
-- A GitHub account to use [GitHub Codespaces](https://github.com/codespaces).
+- A GitHub account to use [GitHub Codespaces](https://github.com/codespaces). If you don't already have one, you can create a free account at [GitHub.com](https://github.com).
 - A computer with the following tools installed:
   - The [.NET 10 SDK](https://dotnet.microsoft.com/download/dotnet/10.0).
   - [Visual Studio Code](https://code.visualstudio.com/download).

docs/csharp/tour-of-csharp/tutorials/pattern-matching.md

@@ -17,23 +17,20 @@ In this tutorial, you:
 > * Create exhaustive matches using `switch` expressions.
 > * Match types using type patterns.
 
-To use codespaces, you need a GitHub account. If you don't already have one, you can create a free account at [GitHub.com](https://github.com).
-
 ## Prerequisites
 
 You must have one of the following:
 
-- A GitHub account to use [GitHub Codespaces](https://github.com/codespaces).
+- A GitHub account to use [GitHub Codespaces](https://github.com/codespaces). If you don't already have one, you can create a free account at [GitHub.com](https://github.com).
 - A computer with the following tools installed:
   - The [.NET 10 SDK](https://dotnet.microsoft.com/download/dotnet/10.0).
   - [Visual Studio Code](https://code.visualstudio.com/download).
   - The [C# DevKit](https://marketplace.visualstudio.com/items?itemName=ms-dotnettools.csdevkit).
 
+## Match a value
 
 The preceding tutorials demonstrated built-in types and types you define as tuples or records. You can check instances of these types against a *pattern*. Whether an instance matches a pattern determines the actions your program takes. In the examples below, you see `?` after type names. This symbol allows the value of this type to be null (for example, `bool?` can be `true`, `false`, or `null`). For more information, see [Nullable value types](../../language-reference/builtin-types/nullable-value-types.md).  Let's start to explore how you can use patterns.
 
-## Match a value
-
 Open a browser window to [GitHub codespaces](https://github.com/codespaces). Create a new codespace from the *.NET Template*. If you completed other tutorials in this series, you can open that codespace.
 
 1. When your codespace loads, create a new file in the *tutorials* folder named *patterns.cs*.

docs/csharp/tour-of-csharp/tutorials/tuples-and-types.md

@@ -17,13 +17,11 @@ In this tutorial, you:
 > * Create record types.
 > * Learn about struct, class, and interface types.
 
-To use codespaces, you need a GitHub account. If you don't already have one, you can create a free account at [GitHub.com](https://github.com).
-
 ## Prerequisites
 
 You must have one of the following:
 
-- A GitHub account to use [GitHub Codespaces](https://github.com/codespaces).
+- A GitHub account to use [GitHub Codespaces](https://github.com/codespaces). If you don't already have one, you can create a free account at [GitHub.com](https://github.com).
 - A computer with the following tools installed:
   - The [.NET 10 SDK](https://dotnet.microsoft.com/download/dotnet/10.0).
   - [Visual Studio Code](https://code.visualstudio.com/download).