Initial WPA Instructions (#1167)

src/plugins/wpa/README.md

@@ -0,0 +1,28 @@
+This page provides the install, setup and usage instructions for Windows Performance Analyzer (WPA) and use it to analyze MsQuic traces.
+
+# Install Instructions
+
+The following are currently only possible on Windows. Other platforms may be supported by WPA in the future.
+
+## Install WPA
+
+1. Download the latest the [ADK Preview](https://www.microsoft.com/en-us/software-download/windowsinsiderpreviewADK) to get the Windows Performance Toolkit (WPT).
+   - Note: In the future, the WPA team plans to make it easier to install WPA outside of the ADK
+2. Install the Windows Performance Toolkit ![](images/ADK_WPT.jpg)
+3. Verify that this WPA version supports plugins
+    - In Command Prompt
+        ```dos
+        "C:\Program Files (x86)\Windows Kits\10\Windows Performance Toolkit\wpa.exe" /?
+        ```
+    - Verify that these 2 command line WPA options are supported:
+      - OPTIONS: **-addsearchdir PATH**. Adds a directory path to the plugin search path. ....
+      - ENVIRONMENT VARIABLES: **WPA_ADDITIONAL_SEARCH_DIRECTORIES** - A semicolon (;) delimited list of additional directories to search for plugins. Equivalent to the -addsearchdir option.
+
+## Install MsQuic WPA Plugin
+
+1. Build the plugin via `QuicEventDataSource.csproj` or download it from the latest release (i.e. [v1.0.0](https://github.com/microsoft/msquic/releases/download/v1.0.0-129524/quic.wpa.zip)).
+2. Update/create your WPA shortcut by adding `-addsearchdir <path_to_quic_plugin_folder>`.
+
+# Usage Instructions
+
+**TODO**