Fix incorrect Tmux keybindings + formatting error in json

[ltouret]

Description:

Fixes incorrect Tmux keybindings and addresses a formatting error in the JSON file. The incorrect keybindings for splitting panes have been corrected based on the official Tmux documentation.

Changes Made:

• Updated the keybindings for splitting panes:
  • Horizontal split: Ctrl + b followed by "
  • Vertical split: Ctrl + b followed by %

Formatting Fixes:

• Corrected formatting errors, including tab inconsistencies.

[ltouret]

They inverted the " and the % hotkeys

[l9c]

Please see https://github.com/l9c/tmux_cheat_sheet_data/pull/2

[ltouret]

Then this is not needed.