docs(server): documentation about server configuration

README.md

@@ -54,6 +54,8 @@ npm run server
 
 Now you can get access to web interface on 8095 port: http://localhost:8095
 
+[More about configuration](docs/SERVER.md)
+
 ## Screenshots
 
 ![Main Window](docs/img/screen_1.png)

docs/SERVER.md

@@ -0,0 +1,27 @@
+## Data directory configuration
+
+File package.json contains path to data directory, you can move this folder to any other (by default data directory for web server same as root folder with package.json). 
+
+```json
+{
+	...
+	"serverDataDirectory": "./",
+	...
+}
+```
+
+This directory always contain logs and other configuration entities.
+
+## Configuration
+
+After server start in root folder will created rats.json - main configuration files. You can configurate port and database path in it:
+
+```json
+{
+    "dbPath": "e:\\Projects\\rats\\db",
+    "peerId": "qpxh1prxtvdp149dhw0nu",
+    "httpPort": 8095
+} 
+```
+
+Where "httpPort" port which listen http server and "dbPath" path to database folder with collection of torrents