add performance evaluation

README.md

@@ -39,7 +39,10 @@ The **isy-thl/multilingual-e5-base-course-skill-tuned** is a finetuned version o
   - The model is optimized for educational contexts and may not generalize as effectively to other domains without further finetuning.
 
 ## Performance
-- Coming soon
+
+![Eval Results comparing intfloat/multilingual-e5-base, isy-thl/multilingual-e5-base-course-skill-tuned and also a version reranked with isy-thl/bge-reranker-base-course-skill-tuned](https://cdn-uploads.huggingface.co/production/uploads/64481ef1e6161a1f32e60d96/x5xqyU-_raRyVOGqGVpq-.png)
+
+The fine-tuned BI-Encoder model (isy-thl/multilingual-e5-base-course-skill-tuned) performs exceptionally well for the target task, offering robust improvements over the base model. To maximize retrieval success, it is recommended to complement the BI-Encoder model with the reranker (isy-thl/bge-reranker-base-course-skill-tuned), especially in scenarios where the computational cost can be justified by the need for higher accuracy and precision.
 
 ## Usage