[glade] Convert the README to markdown

[Alberto Fanjul <albfan src gnome org>]

commit ff86575faff2cef87b668c3c69b6239c8e4cb634
Author: Roger <sachanroger gmail com>
Date:   Sun Sep 1 01:27:15 2019 +0000

    Convert the README to markdown

 README    | 60 ------------------------------------------------------------
 README.md | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 53 insertions(+), 60 deletions(-)
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+# Glade
+
+A user interface designer for Gtk+ and GNOME
+
+Web: <http://glade.gnome.org>
+
+Mailing Lists: 
+
+* <glade-users ximian com>
+  * For discussions about using Glade to build applications.
+* <glade-devel ximian com>
+  * For discussions about the development of Glade itself.
+
+<a href='https://flathub.org/apps/details/org.gnome.Glade'><img width='240' alt='Download on Flathub' 
src='https://flathub.org/assets/badges/flathub-badge-i-en.png'/></a>
+
+## General Information
+
+Glade is a RAD tool to enable quick and easy development of user interfaces
+for the GTK+ 3 toolkit and the GNOME desktop environment. 
+
+The user interfaces designed in Glade are saved as XML and these can be loaded
+by applications dynamically as needed by using GtkBuilder or used directly to
+define a new GtkWidget derived object class using Gtk+ new template feature.
+
+By using GtkBuilder, Glade XML files can be used in numerous programming 
+languages including C, C++, C#, Vala, Java, Perl, Python, and others. 
+
+## About Glade
+
+This version of Glade (Glade >= 3.10) targets GTK+ >= 3.0 and is parallel
+installable with Glade 3.8.
+
+If you need to work with Glade projects that target GTK+2, you need an
+installation of Glade 3.8 (more information on http://blogs.gnome.org/tvb/2011/01/15/the-glade-dl/)
+
+## License
+
+Glade is distributed under the GNU General Public License (GPL), as described
+in the COPYING file.
+
+## Requirements
+
+* GTK+ 3.10.0 or above - <http://www.gtk.org>  
+  You also need the glib, pango and atk libraries.
+  Make sure you have the devel packages as well, as these will contain the
+  header files which you will need to compile C applications.
+
+* libxml 2.4.1 - used to parse the XML files. If you have GNOME 2 you
+  should already have this.
+
+## Installation
+
+See the file '[INSTALL](INSTALL)'