update ioff usage in docs

Author: ianhi

docs/examples/full-example.ipynb

@@ -272,7 +272,7 @@
     "\n",
     "If we make sure interactive mode is off when we create the figure then the figure will only display where we want it to.\n",
     "\n",
-    "There is ongoing work to allow usage of `ioff` as a context manager, see the [ipympl issue](https://github.com/matplotlib/ipympl/issues/220) and the [matplotlib issue](https://github.com/matplotlib/matplotlib/issues/17013)"
+    "To do this you can use `plt.ioff()` as a context manager."
    ]
   },
   {
@@ -281,9 +281,8 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "plt.ioff()\n",
-    "fig = plt.figure()\n",
-    "plt.ion()\n",
+    "with plt.ioff():\n",
+    "    fig = plt.figure()\n",
     "\n",
     "ax = fig.gca()\n",
     "ax.imshow(Z)\n",
@@ -385,9 +384,8 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "plt.ioff()\n",
-    "fig = plt.figure()\n",
-    "plt.ion()\n",
+    "with plt.ioff():\n",
+    "    fig = plt.figure()\n",
     "im = plt.imshow(example_image_stack[0])\n",
     "\n",
     "def update(change):\n",
@@ -425,9 +423,8 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "plt.ioff()\n",
-    "fig = plt.figure()\n",
-    "plt.ion()\n",
+    "with plt.ioff():\n",
+    "    fig = plt.figure()\n",
     "im = plt.imshow(example_image_stack[0])\n",
     "\n",
     "out = widgets.Output()\n",
@@ -448,7 +445,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -462,7 +459,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.6"
+   "version": "3.10.8"
   },
   "widgets": {
    "application/vnd.jupyter.widget-state+json": {