updated docker config, nginx config

docker/nginx.conf

+user www-data;
+worker_processes auto;
+pid /run/nginx.pid;
+
+events {
+  worker_connections 768;
+}
+
+http {
+  sendfile on;
+  tcp_nopush on;
+  tcp_nodelay on;
+  keepalive_timeout 65;
+  types_hash_max_size 2048;
+
+  include /etc/nginx/mime.types;
+  default_type application/octet-stream;
+
+  access_log off;
+  error_log /var/log/nginx/error.log;
+
+  gzip on;
+  gzip_disable "msie6";
+  gzip_vary on;
+  gzip_proxied any;
+  gzip_comp_level 6;
+  gzip_buffers 16 8k;
+  gzip_http_version 1.1;
+  gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
+
+  server {
+    listen 80 default;
+    server_name _;
+    root /webroot;
+    index index.html;
+    location / {
+      try_files $uri $uri/ /index.html;
+    }
+  }
+}
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