Chapter 3: Fix reference to chapter 10

docs/Data-and-Variables.ipynb

@@ -3320,7 +3320,7 @@
     "\n",
     "Up to now we have dealt only with homogeneous arrays: scalars, vectors or higher rank arrays containing only numbers or only characters. An array was a collection of what we call *simple* scalars. In the early 1980's enhanced versions of APL started to appear. They accepted a mixture of numbers and characters within the same array (so-called _mixed arrays_), and arrays could contain sub-arrays as items (so-called _nested arrays_).\n",
     "\n",
-    "In this chapter, we shall explore only some basic properties of _mixed_ and _nested arrays_, just to help you understand what might otherwise appear to be unusual behaviour or unexpected error messages. We shall not go any further for now; the [\"Mixed and Nested Arrays\" chapter](./Mixed-and-Nested-Arrays.ipynb) will be entirely dedicated to an extensive study of nested arrays.\n",
+    "In this chapter, we shall explore only some basic properties of _mixed_ and _nested arrays_, just to help you understand what might otherwise appear to be unusual behaviour or unexpected error messages. We shall not go any further for now; the [\"Nested Arrays (continued)\" chapter](./Nested-Arrays-Continued.ipynb) will be entirely dedicated to an extensive study of nested arrays.\n",
     "\n",
     "Note that with the current widespread use of _nested arrays_, it is now very common to refer to an \"old-fashioned\" array that is not _nested_ as a _simple array_.\n",
     "\n",