[gnome-shell-sass] docs: Use Markdown

[Florian Müllner <fmuellner src gnome org>]

commit a382b306d90ada42668a494a1f603f88da424f6a
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed May 23 17:55:43 2018 +0200

    docs: Use Markdown
    
    Markdown produces nicer output where supported, so use that instead
    of plain ASCII formatting.

 README    |    7 -------
 README.md |   10 ++++++++++
 2 files changed, 10 insertions(+), 7 deletions(-)
---
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..7d6090f
--- /dev/null
+++ b/README.md
@@ -0,0 +1,10 @@
+# GNOME Shell Sass
+GNOME Shell Sass is a project intended to allow the sharing of the
+theme sources in sass between gnome-shell and other projects like
+gnome-shell-extensions.
+
+## License
+GNOME Shell Sass is distributed under the terms of the GNU General Public
+License, version 2 or later. See the [COPYING][license] file for details.
+
+[license]: COPYING