Update README

Updated README with contribution details

Author: jiayali-ms

README

@@ -20,7 +20,25 @@ the problems which may result by upgrading your kernel.
 
 ============
 
-If you would like to report an issue on the WSL2 Linux Kernel, please do so 
-at the WSL GitHub:
+The WSL 2 Linux kernel repo provides the additional infrastructure necessary 
+to build and release the kernel component of WSL 2. It was never designed to 
+replace the current existing community and feedback channels for WSL, 
+especially through:
+
+https://github.com/microsoft/WSL. 
+
+This is why we are not 
+accepting issues or pull requests through this repository.
+ 
+If you have an issue relating to WSL, or the WSL 2 Linux kernel configuration, 
+please report it at the WSL GitHub: would like contribute to or report an issue 
+on the WSL2 kernel, please do so at the WSL GitHub:
+
+https://github.com/microsoft/WSL/issues/new/choose 
+ 
+The WSL 2 Linux kernel is based on the Linux version from 
+https://www.kernel.org/. If you would like to contribute to or report an issue 
+on the Linux kernel in general, please do so on the upstream Linux GitHub:  
+
+https://www.kernel.org/doc/html/latest/process/submitting-patches.html
 
-    https://github.com/microsoft/WSL