Update clock.md (#309)

Author: bughaver

modules/clock.md

@@ -38,7 +38,7 @@ The following properties can be configured:
 | `clockBold`         | Remove the colon and bold the minutes to make a more modern look. <br><br> **Possible values:** `true` or `false` <br> **Default value:** `false`                                                                                                                                                                                                                                    |
 | `showTime`          | Turn off or on the Time section. <br><br> **Possible values:** `true` or `false` <br> **Default value:** `true`                                                                                                                                                                                                                                                                      |
 | `showDate`          | Turn off or on the Date section. <br><br> **Possible values:** `true` or `false` <br> **Default value:** `true`                                                                                                                                                                                                                                                                      |
-| `showWeek`          | Turn off or on the Week section. <br><br> **Possible values:** `true` or `false` <br> **Default value:** `false`                                                                                                                                                                                                                                                                     |
+| `showWeek`          | Turn off or on the Week section. <br><br> **Possible values:** `true`, `false` or `short` <br> **Default value:** `false`                                                                                                                                                                                                                                                            |
 | `showSunTimes`      | Turn off or on the section showing sunrise and sunset times (digital clock only). <br><br> **Possible values:** `true`, `false` or `disableNextEvent` <br> **Default value:** `false`                                                                                                                                                                                                |
 | `showMoonTimes`     | Turn off or on the section showing moonrise and moonset times (digital clock only). Optionally display an image of lunar phase and lit percentage of the moon<br><br> **Possible values:** `times`, `percent`, `phase`, `both` or `false` (disable) <br> **Default value:** `false`                                                                                                  |
 | `lat`               | Latitude for sun/moon calculations. <br><br> **Default value:** `47.630539`                                                                                                                                                                                                                                                                                                          |