add debug walkthrough page

Author: WebFreak001

res/images/create-launch-json.png

@@ -1 +1,26 @@
 # Debugging Projects
+
+First install at least one of these 3 debugging extensions from the VSCode marketplace:
+
+- C++
+- CodeLLDB
+- Native Debug
+
+Check out the Debugging section in the User Guide for more details about these and which to pick if you are unsure.
+
+First create a launch.json file:
+
+![Create a launch.json using the sidebar](../images/create-launch-json.png)
+
+Then follow up by selecting either
+
+* D (code-d: Native Debug / C++ / CodeLLDB)
+* DUB (code-d: Native Debug / C++ / CodeLLDB)
+
+Selecting the `D` variant will just run some D executable you have built before.
+
+Selecting the `DUB` variant will build the project using DUB before running the
+configured executable.
+
+Now you can review the settings that were auto generated and you should be able
+to hit the start button to start debugging.