[gnome-tweak-tool] build: replace basic autotools docs with meson

[Jeremy Bicha <jbicha src gnome org>]

commit 5c550437194c1e60d3ca5c476bca20e6e8a13351
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Tue Jun 6 17:37:59 2017 -0400

    build: replace basic autotools docs with meson

 README |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/README b/README
index 8d6d9d4..58a3594 100644
--- a/README
+++ b/README
@@ -10,7 +10,9 @@ Running
 
  * If you wish to install system wide you must
 
-./autogen.sh && make && make install
+meson build-dir
+ninja -C build-dir
+ninja -C build-dir install
 
 TODO
 ----