Update model card: text-generation pipeline tag and library name

This PR ensures the proper pipeline tag, ensuring the model is found when people are looking for a general text generation model.
It also adds the library name for easier use.

README.md

@@ -1,5 +1,6 @@
 ---
-license: apache-2.0
+base_model:
+- BlinkDL/rwkv7-g1
 language:
 - en
 - zh
@@ -9,11 +10,11 @@ language:
 - ar
 - es
 - pt
+license: apache-2.0
 metrics:
 - accuracy
-base_model:
-- BlinkDL/rwkv7-g1
-pipeline_tag: question-answering
+pipeline_tag: text-generation
+library_name: transformers
 ---
 
 # rwkv7-0.1B-g1