Add library_name and pipeline_tag

This PR makes sure the `library_name` is correctly set and adds the relevant `pipeline_tag` to the model card.

README.md

@@ -1,5 +1,4 @@
 ---
-license: apache-2.0
 datasets:
 - cerebras/SlimPajama-627B
 - bigcode/starcoderdata
@@ -8,7 +7,11 @@ datasets:
 language:
 - fi
 - en
+license: apache-2.0
+library_name: transformers
+pipeline_tag: text-generation
 ---
+
 <div align="center">
 <img src="./poro-logo.png" width="200px">
 </div>
@@ -136,4 +139,4 @@ Pyysalo},
       archivePrefix={arXiv},
       primaryClass={cs.CL}
 }
-```
+```