fix link in scoring sequences

Author: markgeejw

source/python-api/poet/scoring-sequences.ipynb

@@ -131,7 +131,7 @@
         "\n",
         "Learn more about the `score` function in our [PoET Model API](../api-reference/embedding.html#openprotein.embeddings.PoETModel.score) page.\n",
         "\n",
-        "Now that you have a list of sequence variants of interest, you can use the PoET model to perform a [single site analysis] to score all single substitution variants of your parent sequence conditioned on the prompt. See [Using PoET single site analysis](https://colab.research.google.com/drive/1iWZkoQtQxbLoxrzhUeHFTNO5TtWoMIvX?usp=drive_link) for more information."
+        "Now that you have a list of sequence variants of interest, you can use the PoET model to perform a [single site analysis] to score all single substitution variants of your parent sequence conditioned on the prompt. See [Using PoET single site analysis](./single-site-analysis.ipynb) for more information."
       ]
     }
   ],