Update headings in installation guides from 'Summary' to '## Summary' for consistency

docs/wiki/Guides/Installation-and-updates/Create-a-shortcut/Create-a-shortcut.md

@@ -1,4 +1,4 @@
-# Summary
+## Summary
 
 - [How to create a shortcut on Windows](#how-to-create-a-shortcut-on-windows)
     - [On desktop](#on-desktop)

docs/wiki/Guides/Installation-and-updates/Install-or-import-a-version/Install-or-import-a-version.md

@@ -2,7 +2,7 @@
 >
 > [BSManager](https://www.bsmanager.io) does not store your login information. It uses the open-source tool [`DepotDownloader`](https://github.com/SteamRE/DepotDownloader) to download versions of Beat Saber.
 
-# Summary
+## Summary
 
 - [Install a Version with Steam](#install-a-version-with-steam)
 - [Install a Version with Oculus Store (PC)](#install-a-version-with-oculus-store-pcvr)

docs/wiki/Guides/Login/Get-your-oculus-token/Get-your-Oculus-token.md

@@ -4,7 +4,7 @@
 >
 > However, you might wonder why it is necessary to provide this token to [BSManager](https://www.bsmanager.io). The reason is that [BSManager](https://www.bsmanager.io) requires the token to continue the download with Oculus. Once you've input the token, it is used exclusively to communicate with Oculus servers to verify that you are the rightful owner of the game.
 
-# Summary
+## Summary
 
 - [Step 1 - Install and log into the Oculus Rift app](#step-1---install-and-log-into-the-oculus-rift-app)
 - [Step 2 - Open developer tools](#step-2---open-developer-tools)