weaved suggested learning goals into recent updates

Author: eblur

tutorials/notebooks/quantities/quantities.ipynb

@@ -10,24 +10,17 @@
     "Ana Bonaca, Erik Tollerud, Jonathan Foster, Kris Stern\n",
     "\n",
     "## Learning Goals\n",
-    "1. Use `Quantity` objects to estimate a hypothetical galaxy's mass\n",
-    "2. Use `Quantity` objects such as data cubes to facilitate a full derivation of the total mass of a molecular cloud\n",
-    "3. Write functions that take `Quantity` objects instead of raw numbers or arrays\n",
-    "\n",
-    "## Detailed Breakdown of Learning Goals\n",
-    "* Learn how to instantiate `astropy.units.Quantity` objects\n",
+    "* Use `Quantity` objects to estimate a hypothetical galaxy's mass\n",
     "* Take advantage of constants in the `astropy.constants` library\n",
     "* Print formatted unit strings\n",
     "* Plot `Quantity` objects with unit labels, using `astropy.visualization.quantity_support`\n",
     "* Do math with `Quantity` objects\n",
     "* Convert quantities with `astropy.units`\n",
     "* Convert between wavelength and energy with `astropy.units.spectral` equivalencies\n",
     "* Use the small angle approximation with `astropy.units.dimensionless_angles` equivalencies\n",
-    "* Write functions with explicit units to prevent your Mars orbiter from crashing\n",
+    "* Write functions that take `Quantity` objects instead of numpy arrays\n",
     "* Make synthetic radio observations\n",
-    "1. Use `Quantity` objects to estimate a hypothetical galaxy's mass\n",
-    "2. Use `Quantity` objects such as data cubes to facilitate a full derivation of the total mass of a molecular cloud\n",
-    "3. Write functions that take `Quantity` objects instead of raw numbers or arrays\n",
+    "* Use `Quantity` objects such as data cubes to facilitate a full derivation of the total mass of a molecular cloud\n",
     "\n",
     "## Keywords\n",
     "units, matplotlib, radio astronomy, data cubes\n",