removed vi keybindings as they interfere with typing, changed prefix to C-a

tmux.conf

@@ -1,3 +1,9 @@
+# remap prefix to Control + a
+set -g prefix C-a
+# bind 'C-a C-a' to type 'C-a'
+bind C-a send-prefix
+unbind C-b
+
 # Use Ctrl-Left and Ctrl-Right to move between words
 set-window-option -g xterm-keys on