Updated notebook notes

Author: msalemor

gen-ai/Assistants/api-in-a-box/sales_copilot/two_agent_copilot_proxy.ipynb

@@ -50,7 +50,7 @@
     "\n",
     "### Data\n",
     "\n",
-    "This sample uses files from the folder [`data/`](data/customers.csv) in this repo. You can clone this repo or copy this folder to make sure you have access to these files when running the sample.\n",
+    "This sample uses files in the `data/` folder. You can clone this repo or copy this folder to make sure you have access to these files when running the sample.\n",
     "\n",
     "\n",
     "### Load the required libraries"