Update readme for server

server/README.md

@@ -2,6 +2,26 @@
 
 Application for creating and running drone shows, adjusting drones, animations and music.
 
-Documentation is located here:
+## Requirements
+
+* python 3.6+
+* Time synchronization with connected drones.
+
+Can be used with built-in NTP server or with external package for time synchronization like `chrony` on Linux systems.
+
+## Installation
+
+```cmd
+pip3 install -r requirements.txt
+```
+
+## Usage
+
+```cmd
+python3 server.py
+```
+
+## Documentation
+
 * English
 * [Russian](../docs/ru/server.md)