Update Building the Extension.md

Author: bobbrow

Documentation/Building the Extension.md

@@ -1,14 +1,13 @@
-## How to build and debug the Microsoft CppTools Extension  
-  
-These steps will allow you to debug the TypeScript code that is part of the Microsoft CppTools extension for Visual Studio Code.  
-  
-Prerequisite steps:  
-  * Clone [this](https://github.com/Microsoft/vscode-cpptools) repository.  
-  * Install [npm](https://nodejs.org).  
-  * From a command line, run the following commands from the **Extension** folder in the root of the repository:  
-      * `npm install -g vsce` will install `vsce` globally to create the vsix package.  
-      * `npm install` will install the dependencies needed to build the extension.  
-  * Set an environment variable `CPPTOOLS_DEV=1`.  
-    * This enables the local developer workflow, copying dependencies from the **node_modules** folder.  
-  * Open the **Extension** folder in Visual Studio Code and F5.  
-  * Read the [contributing guidelines](https://github.com/Microsoft/vscode-cpptools/blob/master/CONTRIBUTING.md).  
+## How to build and debug the Microsoft CppTools Extension
+
+These steps will allow you to debug the TypeScript code that is part of the Microsoft CppTools extension for Visual Studio Code.
+
+Prerequisite steps:
+  * Clone [this](https://github.com/Microsoft/vscode-cpptools) repository.
+  * Install [npm](https://nodejs.org).
+  * From a command line, run the following commands from the **Extension** folder in the root of the repository:
+      * `npm install` will install the dependencies needed to build the extension.
+      * **(optional)** `npm install -g vsce` will install `vsce` globally to create a VSIX package that you can install.
+  * **(optional)** Set an environment variable `CPPTOOLS_DEV=1`.
+    * This enables the local developer workflow when testing the debugger, copying dependencies from the **node_modules** folder. Testing the language server does not require this step.
+  * Open the **Extension** folder in Visual Studio Code and press F5. This will launch a VS Code Extension Host window and activate the TypeScript debugger. You can set breakpoints on the extension source code and debug your scenario.