Add an entry for "Initialize Distro" topic to TOC

Add a link to initialize-distro.md to TOC

Author: alexandair

WSL/TOC.md

@@ -1,10 +1,11 @@
 # [About the Windows Subsystem for Linux](./about.md)
 # [Install on Windows 10](./install-win10.md)
 # [Install on Windows Server](./install-on-server.md)
+# [Initialize Distro](./initialize-distro.md)
 # [User accounts and permissions](./user-support.md)
 # [Distro management](./wsl-config.md)
 # [Interoperability](./interop.md)
 # [Build a Custom Distro](./build-custom-distro.md)
 # [Frequently Asked Questions](./faq.md)
 # [Troubleshooting](./troubleshooting.md)
-# [Release Notes](./release-notes.md)
+# [Release Notes](./release-notes.md)