Added submodules for tmux plugins

.gitmodules

@@ -1,3 +1,18 @@
 [submodule "nvim/.config/nvim"]
 	path = nvim/.config/nvim
 	url = https://github.com/S4NKALP/nvim
+[submodule "tmux/.tmux/plugins/tpm"]
+	path = tmux/.tmux/plugins/tpm
+	url = https://github.com/tmux-plugins/tpm
+[submodule "tmux/.tmux/plugins/tmux-autoreload"]
+	path = tmux/.tmux/plugins/tmux-autoreload
+	url = https://git::@github.com/b0o/tmux-autoreload
+[submodule "tmux/.tmux/plugins/tmux-open"]
+	path = tmux/.tmux/plugins/tmux-open
+	url = https://git::@github.com/tmux-plugins/tmux-open
+[submodule "tmux/.tmux/plugins/tmux-powerline"]
+	path = tmux/.tmux/plugins/tmux-powerline
+	url = https://git::@github.com/erikw/tmux-powerline
+[submodule "tmux/.tmux/plugins/tmux-sensible"]
+	path = tmux/.tmux/plugins/tmux-sensible
+	url = https://git::@github.com/tmux-plugins/tmux-sensible

tmux/.tmux.conf

@@ -8,7 +8,6 @@ set -g @plugin 'tmux-plugins/tpm'
 set -g @plugin 'tmux-plugins/tmux-sensible'
 set -g @plugin 'erikw/tmux-powerline'
 set -g @plugin 'tmux-plugins/tmux-open'
-#set -g @plugin 'alexchaichan/tmux-spotify-tui'
 set-option -g @plugin 'b0o/tmux-autoreload'
 
 # Initialize TMUX plugin manager (keep this line at the very bottom of tmux.conf)