Update README.md

FIx a typo (unclosed iframe tag) in the previous fix

Author: acetylsalicyl

PW44_2026_GranCanaria/Projects/RegisteringCbctAndFluoroscopyImagesToDetermineElectrodePlacementInTheHumanCochlea/README.md

@@ -93,7 +93,7 @@ Also, created a small anonymization Slicer extension that will fit our later wor
 
 Progress:
 Anonymization moudle UI:
-<iframe width="960" height="540" src="https://www.youtube.com/embed/L2dJuvdan_0e"
+<iframe width="960" height="540" src="https://www.youtube.com/embed/L2dJuvdan_0e">
  </iframe>
 
 Anonymization moudle UI: