📃 master: update documentation

README.md

@@ -47,7 +47,19 @@ Usage: ./xrforge.com <cmd> [opts]
   ./xrforge.com createplugin generates skeleton plugin
   ./xrforge.com server       starts the webserver [without --nobrowser]
   ./xrforge.com build        build 
+```
 
+Extract and run example 3D content in your browser:
+
+```bash
+$ unzip xrforge.com myverse/*       # extract example 3D verse
+$ ./xrforge.com server              # run as server
+opening your browser at https://localhost:8080
+```
+
+## Radical opensource
+
+```
 $ unzip xrforge.com
 Archive:  result/bin/xrforge.com
   Length      Date    Time    Name