Add language tag

Identical to https://huggingface.co/Aleph-Alpha/Pharia-1-LLM-7B-control/discussions/6 as it shares the same model card

README.md

@@ -4,6 +4,14 @@ license_name: open-aleph-license
 license_link: LICENSE
 library_name: scaling
 pipeline_tag: text-generation
+language:
+- en
+- de
+- fr
+- es
+- it
+- pt
+- nl
 ---
 
 We provide a joint model card for `Pharia-1-LLM-7B-control` and `Pharia-1-LLM-control-aligned`. Find this model card [here](https://huggingface.co/Aleph-Alpha/Pharia-1-LLM-7B-control).