remove old example

Author: KonstantinChri

README.md

@@ -8,9 +8,6 @@ dnora is a software for dynamical downscaling of wave products i.e., NORA3 wave
 
 More information in [documentation](https://dnora.readthedocs.io/en/latest/)
 
-Example of downscaling WAM4 using dnora/SWAN:
-![WAM4-DNORA_Skjerjehamn](https://user-images.githubusercontent.com/67804784/145465772-23a3adf9-4daa-4cac-bd02-70ec28dbf519.gif)
-
 Example of downscaling NORA3 using dnora/SWAN offshore Tromsø, Norway:
 ![dnora](https://user-images.githubusercontent.com/67804784/147151236-b9ef920c-34a2-4da0-9877-6241723eff80.gif)