Update Readme. Close #95

README.md

@@ -133,7 +133,7 @@ SkyView.list_surveys()
 SkyView.survey_dict
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-* In addition to overlaying HI contours on survey images available through `astroquery`, a user can request WISE images (`'WISE W#'` where `#` is the band number); false color images from `'decals'` (DR10), `'decals-dr9'` (DR9), or `'panstarrs'`; or gray scale HST-ACS Mosaic images for sources within the COSMOS field with `'hst'`.  The HST image size is currently hardcoded to 40 arcsec on a side. 
+* In addition to overlaying HI contours on survey images available through `astroquery`, a user can request WISE images (`'WISE W#'` where `#` is the band number); false color images from `'decals'` (DR10), `'decals-dr9'` (DR9), `'panstarrs'`, or `'decaps'`; or gray-scale HST-ACS Mosaic images for sources within the COSMOS field with `'hst'`.  The HST image size is currently hardcoded to 40 arcsec on a side. 
 
 * Downloading survey images from `astroquery.SkyView` or other online sources is the greatest limiting factor in the speed of SIP.  To avoid this, for catalogs with a high source density, you may consider downloading one large image to disk before running SIP.  For this purpose, we have included the command line tool `download_usr_fig`. For example:
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