fix language about prob-scale ticks/labels [ci skip]

Author: phobson

docs/tutorial/closer_look_at_viz.ipynb

@@ -219,7 +219,7 @@
     "### Probability plots\n",
     "\n",
     "Visually, the curve of plots on probability and quantile scales should be the same.\n",
-    "The difference is that the quantiles labeling the axis ticks are placed and labeled based on non-exceedance probailities rather than the more abstract quantiles of the distribution.\n",
+    "The difference is that the axis ticks are placed and labeled based on non-exceedance probailities rather than the more abstract quantiles of the distribution.\n",
     "\n",
     "Unsurprisingly, a picture explains this much better.\n",
     "Let's build off of the previos plot:"
@@ -661,4 +661,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 0
-}
+}