Added WSLII installation instruction

sw005320 · web-flow · commit dff04ad108e7 · 2023-02-20T07:40:27.000-05:00
made by @Bereket-Desbele in #4909
diff --git a/doc/installation.md b/doc/installation.md
@@ -56,6 +56,9 @@ to prepare the appropriate environments
 - ubuntu18
 - centos7
 - debian9
+- Windows10 (installation only)
+  - We can conduct complete experiments based on WSL-2 (Ubuntu 20.04). See the [link](https://github.com/espnet/espnet/files/10780845/Instructions.txt) and [#4909](https://github.com/espnet/espnet/discussions/4909) for details (Thanks, [@Bereket-Desbele](https://github.com/Bereket-Desbele)!)
+- MacOS12 (installation only)
 
 
 ### Step 1) [Optional] Install Kaldi
