new requirements of todo module

Modules.md

@@ -66,7 +66,7 @@
 |taskwarrior |Displays the number of pending tasks in TaskWarrior.<br><br>Requires the following library:<br>    * taskw<br><br>Parameters:<br>    * taskwarrior.taskrc : path to the taskrc file (defaults to ~/.taskrc)<br> |
 |test |Test module<br> |
 |title |Displays focused i3 window title.<br><br>Requirements:<br>    * i3ipc<br><br>Parameters:<br>    * title.max : Maximum character length for title before truncating. Defaults to 64.<br>    * title.placeholder : Placeholder text to be placed if title was truncated. Defaults to "...".<br>    * title.scroll : Boolean flag for scrolling title. Defaults to False<br> |
-|todo |Displays the number of todo items from a text file<br><br>Parameters:<br>    * todo.file: File to read TODOs from (defaults to ~/Documents/todo.txt)<br> |
+|todo |Displays the number of todo items from a text file<br><br>Requirements:<br>    * xdg-open<br><br>Parameters:<br>    * todo.file: File to read TODOs from (defaults to ~/Documents/todo.txt)<br> |
 |traffic |Displays network IO for interfaces.<br><br>Parameters:<br>    * traffic.exclude: Comma-separated list of interface prefixes to exclude (defaults to "lo,virbr,docker,vboxnet,veth")<br>    * traffic.states: Comma-separated list of states to show (prefix with "^" to invert - i.e. ^down -\> show all devices that are not in state down)<br>    * traffic.showname: If set to False, hide network interface name (defaults to True)<br>    * traffic.format: Format string for download/upload speeds.<br>                      Defaults to "{:.2f}"<br>    * traffic.graphlen: Graph lenth in seconds. Positive even integer. Each<br>                        char shows 2 seconds. If set, enables up/down traffic<br>                        graphs<br> |
 |twmn |Toggle twmn notifications. |
 |uptime |Displays the system uptime. |