Update README.md

GGUF version of [c4ai-command-r7b-12-2024](https://huggingface.co/CohereForAI/c4ai-command-r7b-12-2024) from CohereForAI.

README.md

@@ -1,3 +1,7 @@
----
-license: cc-by-nc-4.0
----
+---
+license: cc-by-nc-4.0
+base_model:
+- CohereForAI/c4ai-command-r7b-12-2024
+library: gguf
+pipeline_tag: text-generation
+---