minor changes

Weaken dependence on nss-lookup.target
Modify comments about https://github.com/v2ray/v2ray-core/issues/1011

release/config/systemd/v2ray.service

@@ -2,18 +2,18 @@
 Description=V2Ray - A unified platform for anti-censorship.
 Documentation=https://v2ray.com
 After=network.target nss-lookup.target
-Wants=network-online.target nss-lookup.target
+Wants=network-online.target
 
 [Service]
-# If the version of systemd is 240 or above,  then change Type=simple to Type=exec
+# If the version of systemd is 240 or above,  then uncommenting Type=simple and commenting out Type=exec
 #Type=exec
 Type=simple
+# Runs as a root or add CAP_NET_BIND_SERVICE ability can bind 1 to 1024 port.
 # This service runs as root. You may consider to run it as another user for security concerns.
-# By uncommenting the following two lines, this service will run as user v2ray/v2ray.
+# By uncommenting User=v2ray and commenting out User=root, the service will run as user v2ray.
 # More discussion at https://github.com/v2ray/v2ray-core/issues/1011
-# User=v2ray
-# runs as a root or add CAP_NET_BIND_SERVICE ability can bind 1 to 1024 port
 User=root
+#User=v2ray
 #AmbientCapabilities=CAP_NET_BIND_SERVICE
 ExecStart=/usr/bin/v2ray/v2ray -config /etc/v2ray/config.json
 Restart=on-failure