add table of content

Keyboard-mappings.md

@@ -1,3 +1,31 @@
+## Table of Contents
+
+   * [Syntax documentation](#syntax-documentation)
+   * [How to create a mapping](#how-to-create-a-mapping)
+      * [The virtual_keycode is None](#the-virtual_keycode-is-none)
+   * [General Quality of Life Improvements](#general-quality-of-life-improvements)
+      * [MacOS](#macos)
+   * [Italian](#italian)
+      * [Mac OS](#mac-os)
+   * [Spanish](#spanish)
+      * [Mac OS](#mac-os-1)
+      * [macOS Spanish (Spain)](#macos-spanish-spain)
+   * [Swiss German](#swiss-german)
+      * [Mac OS](#mac-os-2)
+   * [Portuguese (pt_PT)](#portuguese-pt_pt)
+      * [Mac OS](#mac-os-3)
+   * [German (de_DE)](#german-de_de)
+      * [Mac OS](#mac-os-4)
+      * [Windows](#windows)
+   * [Swedish (sv_SE)](#swedish-sv_se)
+      * [Mac OS](#mac-os-5)
+      * [Windows](#windows-1)
+   * [French (fr_FR)](#french-fr_fr)
+      * [Mac OS](#mac-os-6)
+   * [Belgian](#belgian)
+      * [Mac OS](#mac-os-7)
+* [Tmux workaround](#tmux-workaround)
+
 ## Syntax documentation
 
 While this includes some helpful examples and tips for changing keyboard mappings in Alacritty, the full syntax is documented in [the default configuration file](https://github.com/alacritty/alacritty/blob/master/alacritty.yml).