Remove install from image tutorial (#551)

* Update image-curation.ipynb

Signed-off-by: Sarah Yurick <53962159+sarahyurick@users.noreply.github.com>

* Update tutorials/image-curation/image-curation.ipynb

Signed-off-by: Sarah Yurick <53962159+sarahyurick@users.noreply.github.com>

* Update tutorials/image-curation/image-curation.ipynb

Signed-off-by: Sarah Yurick <53962159+sarahyurick@users.noreply.github.com>

---------

Signed-off-by: Sarah Yurick <53962159+sarahyurick@users.noreply.github.com>

Author: sarahyurick

tutorials/image-curation/image-curation.ipynb

@@ -36,7 +36,10 @@
    "metadata": {},
    "source": [
     "## Install NeMo Curator\n",
-    "This installs NeMo Curator and some additional libraries for helper functions in the notebook"
+    "\n",
+    "If you have not already, please install NeMo Curator by following the [README](https://github.com/NVIDIA/NeMo-Curator?tab=readme-ov-file#nemo-curator); you should install either `nemo-curator[all]` or `nemo-curator[image]` for this tutorial. If you are using the NeMo Framework Container, then NeMo Curator is already installed and no action is needed.\n",
+    "\n",
+    "We also need to install some additional libraries for helper functions in the notebook:"
    ]
   },
   {
@@ -49,9 +52,7 @@
    },
    "outputs": [],
    "source": [
-    "!pip install ipywidgets aiofiles\n",
-    "# Install from source by default\n",
-    "!pip install --extra-index-url https://pypi.nvidia.com ../../[image]"
+    "!pip install ipywidgets aiofiles"
    ]
   },
   {