Add another example for implied print

Author: znorman-harris

extension/example-notebooks/hello-world-idl.idlnb

@@ -165,6 +165,22 @@
       "metadata": {},
       "outputs": []
     },
+    {
+      "type": "markdown",
+      "content": [
+        "Or you can just call a function and it the result will be printed out:"
+      ],
+      "metadata": {},
+      "outputs": []
+    },
+    {
+      "type": "code",
+      "content": [
+        "findgen(10)"
+      ],
+      "metadata": {},
+      "outputs": []
+    },
     {
       "type": "markdown",
       "content": [
@@ -271,6 +287,27 @@
       "metadata": {},
       "outputs": []
     },
+    {
+      "type": "markdown",
+      "content": [
+        "You can also mix-and-match routines with implied printing. Let's revisit our example cell that defined the function `foo`."
+      ],
+      "metadata": {},
+      "outputs": []
+    },
+    {
+      "type": "code",
+      "content": [
+        "function foo2",
+        "  compile_opt idl2",
+        "  return, 'I told you it wasn''t that simple! But it''s also not rocket science.'",
+        "end",
+        "",
+        "foo2()"
+      ],
+      "metadata": {},
+      "outputs": []
+    },
     {
       "type": "markdown",
       "content": [