remove aside field from class variable text

Author: kyleniemeyer

classes-objects.ipynb

@@ -182,7 +182,6 @@
     "```\n",
     "\n",
     "::: {.content-visible when-format=\"html\"}\n",
-    "::: aside \n",
     "Class variables can get a bit confusing; if you modify the variable associated with an object, it becomes an instance variable. For example:\n",
     "\n",
     "```python\n",
@@ -215,20 +214,25 @@
     "print(p1.spin)\n",
     "print(p2.spin)\n",
     "```\n",
-    "gives\n",
+    "giving\n",
+    "```\n",
     "0.5\n",
     "0\n",
-    "However, in general spin is still a class variable, and we can modify it for the whole class:\n",
+    "```\n",
+    "\n",
+    "However, in general `spin` is still a class variable, and we can modify it for the whole class:\n",
+    "```python\n",
     "Particle.spin = -0.5\n",
     "print(p1.spin)\n",
     "print(p2.spin)\n",
+    "```\n",
     "which gives\n",
+    "```\n",
     "0.5\n",
     "-0.5\n",
-    "So for p1, spin has become an instance variable, but  p2  is still pointing to the class variable.\n",
     "```\n",
     "\n",
-    ":::\n",
+    "So, for `p1`, spin has become an instance variable, but `p2` still points to the class variable.\n",
     ":::\n",
     "\n",
     "## Instance variables\n",