Update the migration guide
authorMatthias Clasen <mclasen@redhat.com>
Mon, 7 Nov 2016 19:59:23 +0000 (14:59 -0500)
committerMatthias Clasen <mclasen@redhat.com>
Mon, 7 Nov 2016 21:00:05 +0000 (16:00 -0500)
commit5b8646c6e83cb92fca370ec576859c93b65eff8d
treea4b0f3738acab3312cba0614d475d7368fc9308c
parent2a5a94b2606ffae08fce634e61c533830f54c3ec
Update the migration guide

Mention the demise of -gtk-gradient, and explain that CSS syntax
works fine for this now.
docs/reference/gtk/migrating-3to4.xml