Update intro content

Author: nts345045

notebooks/Nate/catalog_management.ipynb

@@ -7,11 +7,13 @@
     "# Catalog Wrangling Exercise  \n",
     "*:auth: Nate Stevens (PNSN)*\n",
     "\n",
-    "In this exercise we'll use ObsPy and ObsPlus to create a highly translatable earthquake  \n",
-    "catalog of located events from our analyses and those in the USGS Comprehensive Catalog  \n",
-    "(ComCat) and do some quick intercomparisons between the two. Finally we'll save these  \n",
-    "catalogs into a variety of standardized formats (schema) that are easy to re-load and  \n",
-    "re-analyze with ObsPy and Pandas."
+    "In this exercise we'll use ObsPy and ObsPlus to create a highly translatable earthquake catalog from events we located through analyses.  \n",
+    "\n",
+    "The notebook will demonstrate some tools for getting our (meta)data into two well-defined schema:  \n",
+    " - the ANSS schema (https://ncedc.org/db/Documents/NewSchemas/PI/v1.6.4/PI.1.6.4/index.htm)\n",
+    " - the QuakeML schema (https://quake.ethz.ch/quakeml)\n",
+    "\n",
+    "Finally, we'll make an EventBank that lets us save, update, and query our event catalog in a systematic manner."
    ]
   },
   {