message: Update Weblate URL
diff: @@ -18,7 +18,7 @@ are currently filed against vector-im/element-web rather than this project).
  Translation Status
  ==================
  -[![Translation status](https://translate.riot.im/widgets/element-web/-/multi-auto.svg)](https://translate.riot.im/engage/element-web/?utm_source=widget)
  +[![Translation status](https://translate.element.io/widgets/element-web/-/multi-auto.svg)](https://translate.element.io/engage/element-web/?utm_source=widget)
  Developer Guide
  ===============
  