Improve model card

This PR ensures a proper `library_name` and `pipeline_tag` are added, helping people find this checkpoint in the Hub's search.
Also set `license` to `unknown` as it's unclear what license should be used for a merged model.

README.md

@@ -1,6 +1,7 @@
-
 ---
-license: llama2
+license: unknown
+library_name: transformers
+pipeline_tag: text-generation
 base_model:
 - unsloth/llama-2-13b
 - layoric/llama-2-13b-code-alpaca
@@ -9,6 +10,7 @@ base_model:
 tags:
 - merge
 ---
+
 # AIM Paper Checkpoints Uploaded For Replication
 This repository includes one of the checkpoints used in the paper "Activation-Informed Merging of Large Language Models". Specifics of this model are as follows:
 
@@ -20,4 +22,4 @@ This repository includes one of the checkpoints used in the paper "Activation-In
     - ***Instruction Tuned:*** WizardLMTeam/WizardLM-13B-V1.2
 - **AIM:** True
 
-Benchmark results and paper details can be found at the official [GitHub](https://github.com/ahnobari/ActivationInformedMerging.git).
+Benchmark results and paper details can be found at the official [GitHub](https://github.com/ahnobari/ActivationInformedMerging.git).