Fix up the docs to make configuration 3 match the screenshot (#383)

Author: davidfmatheson

README.md

@@ -420,10 +420,10 @@ set -g @catppuccin_window_status_style "rounded"
 set -g @catppuccin_window_number_position "right"
 
 set -g @catppuccin_window_default_fill "number"
-set -g @catppuccin_window_default_text "#W"
+set -g @catppuccin_window_default_text "#W "
 
 set -g @catppuccin_window_current_fill "number"
-set -g @catppuccin_window_current_text "#W"
+set -g @catppuccin_window_current_text "#W "
 
 set -g @catppuccin_status_left_separator  " "
 set -g @catppuccin_status_right_separator ""