Add brief introduction to docs folder (#54)

Author: cchavez-msft

docs/README.md

@@ -0,0 +1,19 @@
+# Win32 App Isolation Introduction
+
+### Target Applications
+
+* Win32
+* Desktop Bridge (Centennial)
+
+### Minimum Requirements:
+
+* Windows insider version >= 25357 (Canary channel only)
+* [Customized MSIX Packaging Tool](https://github.com/microsoft/win32-app-isolation/releases/tag/v0.1.1) This version is required to build a Win32 app isolation application
+* If is needed to know which capabilities are required, one can use [ACP](https://github.com/microsoft/win32-app-isolation/releases/tag/v0.1.1) and [WPR](https://learn.microsoft.com/en-us/windows-hardware/test/wpt/windows-performance-recorder)
+
+### Creating a Win32 App Isolation App:
+
+1. Create an MSIX package from Win32 installer *if the app is not already MSIX* ([step 1](packaging/msix-packaging-tool.md#win32---msix))
+2. Turn the MSIX Package to isolated Win32 app ([step 2](packaging/msix-packaging-tool.md#msix---isolated-win32))
+3. Identify the required capabilities using [ACP](profiler/application-capability-profiler.md)
+4. Repackage the app with the capabilities just found