update readme

Signed-off-by: fadhil riyanto <me@fadev.org>

1 files changed, 17 insertions, 3 deletions

diff --git a/readme.md b/readme.md
index 1b85f57..2fdc86c 100644
--- a/readme.md
+++ b/readme.md
@@ -8,9 +8,23 @@ simulating `xsetroot -name "text"`
 example:
 <img src="https://github.com/fadhil-riyanto/xrootd/blob/master/scr_img/87.png?raw=true">
 
-# Usage
-
-just type `./xsetrootd`
+# Usage & build
+
+<pre>
+git clone https://github.com/fadhil-riyanto/xrootd.git
+cd xrootd
+mkdir build
+cd build
+cmake ..
+make -j4
+./xsetrootd
+</pre>
+
+or install
+<pre>
+sudo make install
+xsetrootd
+</pre>
 
 build dependencies:
 - X11