Fixed link in mutation notebook

esm/notebooks/mutation_effect_prediction.ipynb

@@ -19,7 +19,7 @@
     "\n",
     "**Negative scores** indicate deleterious mutations (model assigns lower probability to the mutant), while **positive scores** suggest beneficial or neutral changes.\n",
     "\n",
-    "We'll demonstrate mutation effect prediction using **β-lactamase TEM from *E. coli***, a clinically important antibiotic resistance enzyme. This protein hydrolyzes β-lactam antibiotics and is one of the most common resistance mechanisms in clinical isolates. TEM-1 was extensively characterized through deep mutational scanning by [Stiffler et al. (2015)](\"https://www.cell.com/fulltext/S0092-8674(15)00078-1\"), who measured the fitness effects of nearly 5,000 single amino acid mutations. We'll use their experimental data to validate our ESM-2 predictions and demonstrate how well the model captures functional constraints.\n"
+    "We'll demonstrate mutation effect prediction using **β-lactamase TEM from *E. coli***, a clinically important antibiotic resistance enzyme. This protein hydrolyzes β-lactam antibiotics and is one of the most common resistance mechanisms in clinical isolates. TEM-1 was extensively characterized through deep mutational scanning by [Stiffler et al. (2015)](https://www.cell.com/fulltext/S0092-8674%2815%2900078-1), who measured the fitness effects of nearly 5,000 single amino acid mutations. We'll use their experimental data to validate our ESM-2 predictions and demonstrate how well the model captures functional constraints.\n"
    ]
   },
   {