renamed function. this refs #321

Author: JeanBilheux

notebooks/cylindrical_geometry_correction_embedded_widgets.ipynb

@@ -223,7 +223,7 @@
     "<hr style=\"border-bottom: dotted 1px;\" />\n",
     "<hr style=\"height: 2px\" />\n",
     "\n",
-    "# <font color='red'>Select background or No background</font>\n",
+    "# <font color='purple' size='5'>Select background or No background</font><font color='purple' size='3'> - OPTIONAL</font>\n",
     "\n",
     "Select a part of the tube that does not contain the sample. The horizontal profile of this region, integrated over the y-axis, will be used as the background signal to remove from the data.\n",
     "Otherwise, you can just skip that step!\n",
@@ -275,7 +275,7 @@
    "id": "22",
    "metadata": {},
    "source": [
-    "# <font color='red'>Removing or not tube background from sample</font>\n",
+    "# <font color='red'>Updating Images</font>\n",
     "\n",
     "* if a **background was selected**, the backround counts will be removed from the sample region\n",
     "* if **no background was selected**, no background counts will be removed\n",
@@ -290,7 +290,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "o_ipts.remove_background_signal()"
+    "o_ipts.update_signal()"
    ]
   },
   {