diff --git a/README.md b/README.md
index 9747024..5e3fd98 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,31 @@
 # VirtScreen
-Make your iPad/tablet/computer as a secondary monitor on Linux.
+> Make your iPad/tablet/computer as a secondary monitor on Linux.
+
+VirtScreen is an easy-to-use Linux GUI app that creates a virtual secondary screen and shares it through VNC.
+
+VirScreen is based on [PyQt5](https://www.riverbankcomputing.com/software/pyqt/intro) and [Twisted](https://twistedmatrix.com) in Python side and uses [x11vnc](https://github.com/LibVNC/x11vnc) and XRandR.
+
+## Dependency
+
+1. You need [`x11vnc`](https://github.com/LibVNC/x11vnc) and `xrandr`. To install (example on Ubuntu):
+```bash
+sudo apt-get install x11vnc xrandr
+```
+
+2. Install Python dependencies:
+
+```
+pip install -r requirements.txt
+```
+
+## How to run
+
+Simply run this in the project root:
+
+```bash
+./virtscreen.py
+
+or
+
+python virtscreen.py
+```
diff --git a/virtscreen.py b/virtscreen.py
index 490e45d..f44c698 100755
--- a/virtscreen.py
+++ b/virtscreen.py
@@ -445,4 +445,4 @@ if __name__ == '__main__':
     window = Window()
     window.show()
     sys.exit(app.exec_())
-    reactor.run()
\ No newline at end of file
+    reactor.run()