Test doc scijava#1 and fix errors

- Runs standalone
- Updated to use `mode`
- Add additional info on `mode`

Author: elevans

doc/1-Starting-PyImageJ.ipynb

@@ -25,20 +25,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "'2.3.0/1.53f'"
-      ]
-     },
-     "execution_count": 1,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
+   "outputs": [],
    "source": [
     "import imagej\n",
     "ij = imagej.init('sc.fiji:fiji:2.3.1')\n",
@@ -54,14 +43,16 @@
     "| Requirement                                   | Code<sup>1</sup>                                                     | Reproducible?<sup>2</sup> |\n",
     "|:----------------------------------------------|:---------------------------------------------------------------------|:-------------------------:|\n",
     "| Newest available version of ImageJ            | `ij = imagej.init()`                                                 | NO                        |\n",
-    "| Specific version of ImageJ                    | `ij = imagej.init('2.1.0')`                                         | YES                       |\n",
-    "| With a GUI (newest version)                   | `ij = imagej.init(headless=False)`                                   | NO                        |\n",
-    "| With a GUI (specific version)                 | `ij = imagej.init('net.imagej:imageJ:2.1.0', headless=False)`       | YES                       |\n",
+    "| Specific version of ImageJ                    | `ij = imagej.init('2.3.0')`                                          | YES                       |\n",
+    "| Interactive (newest version)*                 | `ij = imagej.init(mode='interactive')`                               | NO                        |\n",
+    "| Interactive (specific version)*               | `ij = imagej.init('net.imagej:imageJ:2.1.0', mode='interactive')`    | YES                       |\n",
     "| With support for ImageJ 1.x (newest versions) | `ij = imagej.init('net.imagej:imagej+net.imagej:imagej-legacy')`     | NO                        |\n",
     "| With Fiji plugins (newest version)            | `ij = imagej.init('sc.fiji:fiji')`                                   | NO                        |\n",
     "| With Fiji plugins (specific version)          | `ij = imagej.init('sc.fiji:fiji:2.1.1')`                             | YES                       |\n",
     "| From a local installation                     | `ij = imagej.init('/Applications/Fiji.app')`                         | DEPENDS                   |\n",
     "\n",
+    "*: `mode='interactive'` is unavailalbe on MacOS. Instead use `mode='gui'`. When set to `gui` mode the Python inerpter is blocked and no longer interactive._\n",
+    "\n",
     "<sup>1</sup> pyimagej uses [`jgo`](https://github.com/scijava/jgo) internally to call up ImageJ, so all of these initializations are tied to the usage of `jgo`. You can read up on the [usage of `jgo`](https://github.com/scijava/jgo#usage) to find out more about this initialization.\n",
     "\n",
     "<sup>2</sup> ___Reproducible___ means code is stable, executing the same today, tomorrow, and in years to come. While it is convenient and elegant to depend on the newest version of a program, behavior may change when new versions are released—for the better if bugs are fixed; for the worse if bugs are introduced—and people executing your notebook at a later time may encounter broken cells, unexpected results, or other more subtle behavioral differences. You can help avoid this pitfall by pinning to a specific version of the software. The British Ecological Society published [Guide to Better Science: Reproducible Code](https://www.britishecologicalsociety.org/wp-content/uploads/2018/12/BES-Reproducible-Code.pdf) diving into the relevant challenges in more detail, including an [R](https://www.r-project.org/)-centric illustration of best practices. A web search for `reproducible python` also yields several detailed articles."
@@ -91,20 +82,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "'ImageJ2 2.3.0/1.53f; Java 11.0.9.1-internal [amd64]; 35MB of 8012MB'"
-      ]
-     },
-     "execution_count": 2,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
+   "outputs": [],
    "source": [
     "ij.getApp().getInfo(True)"
    ]
@@ -126,7 +106,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.10.1"
+   "version": "3.8.10"
   },
   "toc": {
    "base_numbering": 1,