changed broken link for wandb tracing with agent (#15578)

fix of #14905 

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---------

Co-authored-by: Harrison Chase <hw.chase.17@gmail.com>

docs/docs/integrations/providers/wandb_tracking.ipynb

@@ -18,7 +18,7 @@
     ") \n",
     "\n",
     "\n",
-    "**Note**: _the `WandbCallbackHandler` is being deprecated in favour of the `WandbTracer`_ . In future please use the `WandbTracer` as it is more flexible and allows for more granular logging. To know more about the `WandbTracer` refer to the [agent_with_wandb_tracing.html](https://python.langchain.com/en/latest/integrations/agent_with_wandb_tracing.html) notebook or use the following [colab notebook](http://wandb.me/prompts-quickstart). To know more about Weights & Biases Prompts refer to the following [prompts documentation](https://docs.wandb.ai/guides/prompts)."
+    "**Note**: _the `WandbCallbackHandler` is being deprecated in favour of the `WandbTracer`_ . In future please use the `WandbTracer` as it is more flexible and allows for more granular logging. To know more about the `WandbTracer` refer to the [agent_with_wandb_tracing](/docs/integrations/providers/wandb_tracing) notebook or use the following [colab notebook](http://wandb.me/prompts-quickstart). To know more about Weights & Biases Prompts refer to the following [prompts documentation](https://docs.wandb.ai/guides/prompts)."
    ]
   },
   {
@@ -650,4 +650,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 5
-}
+}