add merge tag

To make it easier to identify merge models, we're experimenting with adding a `merge` tag for models created via a merge.

README.md

@@ -2,11 +2,12 @@
 license: apache-2.0
 language:
 - en
+tags:
+- merge
 ---
 
 # Marcoroni-neural-chat-7B-v1
 
 # Model Details
   This model is a merge of models [AIDC-ai-business/Marcoroni-7B-v3](https://huggingface.co/AIDC-ai-business/Marcoroni-7B-v3) and [Intel/neural-chat-7b-v3-3](https://huggingface.co/Intel/neural-chat-7b-v3-3) using Slerp with mergekit tool for testing purposes.
-  Both models are based on mistralai/Mistral-7B-v0.1.
-  
+  Both models are based on mistralai/Mistral-7B-v0.1.