Fix typo in NUTS description in notebook

Author: HadenSmith

notebooks/05_mcmc_adaptive.ipynb

@@ -696,7 +696,7 @@
     "- DEMCz: Differential Evolution MCMC (population-based)\n",
     "- DEMCzs: DEMCz with snooker update (better for complex posteriors)\n",
     "- HMC: Hamiltonian Monte Carlo (uses gradients)\n",
-    "- NUTS: No-U Turn Sanpler (adaptive HMC)\n",
+    "- NUTS: No-U Turn Sampler (adaptive HMC)\n",
     "\n",
     "Before we start, let's go through the our last two samplers.\n",
     "\n",