Updated Keyboard mappings (markdown)

Keyboard-mappings.md

@@ -24,7 +24,6 @@
       * [Mac OS](#mac-os-6)
    * [Belgian](#belgian)
       * [Mac OS](#mac-os-7)
-* [Tmux workaround](#tmux-workaround)
 
 ## Syntax documentation
 
@@ -274,33 +273,3 @@ For those, coming from iTerm, here's `Command + Enter` to ToggleFullscreen
   - { key: 37,        mods: Alt|Shift, chars: "|"                       }
   - { key: 47,        mods: Alt|Shift, chars: "\\"                      }
 ```
-
-
-# Tmux workaround
-
-Launching `tmux` as the default shell in `alacritty` with the `-u` flag might bring back unicode symbols. In `alacritty.yml`:
-```
-shell:
-    program: /usr/local/bin/tmux
-    args:
-     - -u # force UTF-8 in tmux
-```
-
-
-If you want to achieve `SpawnNewInstance` functionality when using tmux as shell, try adding the following binding to your tmux configuration file (e.g. `~/.tmux.conf`):
-```
-bind -n C run-shell -b 'alacritty --working-directory #{pane_current_path} -e tmux'
-```
-Test with "C", change with your desired key combinations.
-
-If that don't work, you can try to add this script at top .zshrc or .bashrc (fish shell not work for this syntax)
-
-```bash
-# Link: https://github.com/thuanpham2311/dotfiles/blob/master/zsh/zshrc
-if command -v tmux &> /dev/null && [ -n "$PS1" ] \
-                                && [[ ! "$TERM" =~ screen ]] \
-                                && [[ ! "$TERM" =~ tmux ]] \
-                                && [ -z "$TMUX" ]; then
-    exec tmux
-fi
-```