Enhance README with client setup details

Added client setup instructions for the Android app.

Author: unitycoder

README.md

@@ -1,10 +1,21 @@
 # PC Remote Control Server
 
-Used with Android App: <link here>
+Use Android Mobile App to control your PC for Youtube Playback! (send play, pause, mediakeys etc).
 
-### SETUP
-
-...
+### SERVER SETUP
 
+- Download zip from Releases, unzip and run .exe
+- Allow connection in firewall when it asks on the first run (for local network) 
+- Press Start to launch server (or enable [x] Require PIN if you dont want others to connect directly from same network)
+<img width="786" height="443" alt="image" src="https://github.com/user-attachments/assets/b51f9609-3f39-4bb7-9232-da9c526799b8" />
 
+### CLIENT SETUP
+- Download Android app:
+- Your device need to be in same network! (for example 192.168.0.x)
+- When application starts, it asks for server ip address and port (and optional pin code)
+- When you close Settings panel, it tries to reconnect into server
+- Once connected, the led turns green in the top left corner (red means not connected or other error)
+- Then you can open youtube video in browser and send keycommands while laying on the couch!
 
+<img width="424" height="894" alt="image" src="https://github.com/user-attachments/assets/8fed0eeb-18cf-40e8-8b70-5b55cc6d248d" />
+<img width="421" height="896" alt="image" src="https://github.com/user-attachments/assets/50550bfb-fa2e-49d2-8601-e5b5db722348" />