update gemma description (#857)

.env.template

@@ -33,7 +33,7 @@ MODELS=`[
   },
   {
     "name" : "google/gemma-7b-it",
-    "description": "Gemma 7B is from a family of lightweight models from Google built from the same research and technology used to create the Gemini models.",
+    "description": "Gemma 7B belongs to a family of lightweight models built by Google, based on the same research and technology used to create the Gemini models.",
     "websiteUrl" : "https://blog.google/technology/developers/gemma-open-models/",
     "logoUrl": "https://huggingface.co/datasets/huggingchat/models-logo/resolve/main/google-logo.png",
     "modelUrl": "https://huggingface.co/google/gemma-7b-it",