README.md: add info-timezone screenshot

Author: x70b1

README.md

@@ -94,6 +94,7 @@ Is this your first time here? You should definitely take a look at these scripts
 [![info-camera-mic](polybar-scripts/info-camera-mic/screenshots/1.png)](polybar-scripts/info-camera-mic/)
 [![info-healthchecks.io](polybar-scripts/info-healthchecks.io/screenshots/1.png)](polybar-scripts/info-healthchecks.io/)
 [![network-huawei-modem](polybar-scripts/network-huawei-modem/screenshots/1.png)](polybar-scripts/network-huawei-modem/)
+[![info-timezone](polybar-scripts/info-timezone/screenshots/1.gif)](polybar-scripts/info-timezone/)
 
 
 ## See also these other user repositories: