docs: add tmux-keylocker (#103)

README.md

@@ -135,6 +135,7 @@ List of helpful tmux links for various tutorials, plugins, and configuration set
 - [tmux-fuzzback](https://github.com/roosta/tmux-fuzzback) Search your scrollback buffer using fzf.
 - [tmux-fzf-url](https://github.com/wfxr/tmux-fzf-url) For opening urls from browser quickly without mouse.
 - [tmux-fzf-session-switch](https://github.com/thuanOwa/tmux-fzf-session-switch) Easy way to switch, when you have a ton of sessions.
+- [tmux-keylocker](https://github.com/TheSast/tmux-keylocker) Lock away your tmux keybinds temporarely.
 - [tmux-menus](https://github.com/jaclu/tmux-menus) - Popup menus to help with managing your environment.
 - [tmux-modal](https://github.com/whame/tmux-modal) - Execute complex tmux commands in just a few keystrokes with a modal mode that is designed to be efficient, easy to remember and comfortable.
 - [tmux-mouse-swipe](https://github.com/jaclu/tmux-mouse-swipe) - Switch Window or Session by clicking right mouse button and swiping.