docs(readme): update readme

jkuri · jkuri · commit 37f9156923c7 · 2018-04-16T08:49:17.000+02:00
diff --git a/README.md b/README.md
@@ -2,6 +2,10 @@
 
 Vex is a reverse HTTP proxy tunnel via secure SSH connections. It is compatible with `ssh` client.
 
+<p align="center">
+  <img src="https://user-images.githubusercontent.com/1796022/38793799-f23c981a-4152-11e8-9e6c-382ce6536c87.png">
+</p>
+
 ### Establish tunnel via running vex server on bleenco.space
 
 Let's say you are running HTTP server locally on port 6500, then command would be:
