Missing variable definition in TestGalaxyGalaxyLensingSDSSMain.ipynb

[Heather Kelly]

While testing the updated desc-stack-dev jupyter kernel, I ran across an error, where catalog is undefined:

DC2-analysis/contributed/TestGalaxyGalaxyLensingSDSSMain.ipynb

Line 225 in c8f2c16

 "    d = catalog.get_quantities(columns, native_filters=[(lambda x: x==Pix[i], 'healpix_pixel')], filters=['mag_i_lsst < 28'])\n", 

Yao suggests adding: catalog = GCRCatalogs.load_catalog('cosmoDC2')
I'll give that a try and submit a PR.

[Yao-Yuan Mao]

Fixed by #88