Update FITS-header.ipynb

Author: adrn

tutorials/FITS-header/FITS-header.ipynb

@@ -5,7 +5,8 @@
    "date": "July 2013",
    "link_name": "Editing a FITS header",
    "name": "",
-   "published": true
+   "published": true,
+   "description" : "short description here"
   },
   "signature": "sha256:396649b4c4fd39eacc68f62356450cf0f78c88d5aaded5250eb3c3a8d80e4030"
  },
@@ -211,4 +212,4 @@
    "metadata": {}
   }
  ]
-}
+}