Update translation files

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Translation: RoR Player/Tune description: rope-skipping
Translate-URL: https://hosted.weblate.org/projects/ror-player/tune-description-rope-skipping/

assets/tuneDescriptions/rope-skipping/de.md

@@ -13,7 +13,7 @@ oneself or others are swinging around your body.
 
 ## Schwierigkeit
 
-* **Low Surdo:** medium
+* **Tiefe Surdo:** mittel
 * **Mid Surdo:** tricky
 * **Hohe Surdo:** mittel
 * **Repi:** schwierig