Docs for server configuration, added root .htaccess

.htaccess

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+<IfModule mod_rewrite.c>
+RewriteEngine On
+  # If an existing asset or directory is requested go to it as it is
+  RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} -f [OR]
+  RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} -d
+  RewriteRule ^ - [L]
+
+  # If the requested resource doesn't exist, use index.html
+  RewriteRule ^ /index.html
+</IfModule>

docs/server-configuration.MD

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+# Server configuration
+
+Angular2 application by default works with so called hashbangs. They made url look like `/#/window/111`. To change this to `/window/111` you need to use HTML5 browser history functionality and adjust your server configuration.
+
+## Apache2
+
+Server configuration for Apache2 can be found in project root in `.htaccess`.
+
+## nginx
+
+In your `server {}` block use:
+
+```
+    root /var/www/root_project_dir;
+    index index.html;
+
+    location / {
+        try_files $uri /index.html;
+    }
+```