Add pipeline tag and paper link

This PR adds the missing `pipeline_tag: translation` to the model card metadata. This will ensure the model is correctly categorized and discoverable through the Hugging Face pipeline search.
This PR also adds the link to the paper.

README.md

@@ -1,11 +1,12 @@
 ---
-license: cc-by-4.0
 language:
 - cs
 - pl
 - sk
 - sl
 library_name: transformers
+license: cc-by-4.0
+pipeline_tag: translation
 tags:
 - translation
 - mt
@@ -30,6 +31,8 @@ ___MultiSlav-4slav___ is an Encoder-Decoder vanilla transformer model trained on
 Model is supporting translation between 4 languages: Czech, Polish, Slovak, Slovene.
 This model is part of the [___MultiSlav___ collection](https://huggingface.co/collections/allegro/multislav-6793d6b6419e5963e759a683). More information will be available soon in our upcoming MultiSlav paper.
 
+Paper: [](https://hf.co/papers/2502.14509)
+
 Experiments were conducted under research project by [Machine Learning Research](https://ml.allegro.tech/) lab for [Allegro.com](https://ml.allegro.tech/).
 Big thanks to [laniqo.com](laniqo.com) for cooperation in the research. 
 
@@ -218,7 +221,7 @@ Evaluation of the models was performed on [Flores200](https://huggingface.co/dat
 The table below compares performance of the open-source models and all applicable models from our collection.
 Metrics BLEU, ChrF2, and Unbabel/wmt22-comet-da.
 
-Translation results on translation from Polish to Czech (Slavic direction with the __highest__ data-regime):
+Translation results on translation from Polish to Czech (Slavic direction with the __highest__ data-regime):\
 
 | **Model**                                                 | **Comet22** | **BLEU** | **ChrF** | **Model Size** |
 |-----------------------------------------------------------|:-----------:|:--------:|:--------:|---------------:|
@@ -232,7 +235,7 @@ Translation results on translation from Polish to Czech (Slavic direction with t
 | ___MultiSlav-4slav___ <span style="color:green;">*</span> |    90.2     |   20.6   |   48.7   |           242M |
 | MultiSlav-5lang                                           |  __90.4__   | __20.7__ | __48.9__ |           258M |
 
-Translation results on translation from Slovak to Slovene (Slavic direction with the __lowest__ data-regime):
+Translation results on translation from Slovak to Slovene (Slavic direction with the __lowest__ data-regime):\
 
 | **Model**                                                 | **Comet22** | **BLEU** | **ChrF** | **Model Size** |
 |-----------------------------------------------------------|:-----------:|:--------:|:--------:|---------------:|