VLESS-gRPC-TLS: add helps for nginx

VLESS-gRPC-TLS/README.md

@@ -0,0 +1,32 @@
+# VLESS-gRPC-TLS
+
+## VLESS-gRPC-TLS-web
+
+### Nginx
+
+1. In [config_server.json](config_server.json): Remove `tlsSettings`, Change `security` to `none` or simply remove it.
+
+2. In nginx config: Listen http2, add location `GunService` (should same as grpc `serviceName`) to listen and proxy.
+
+Config clip example:
+
+```nginx
+server {
+    # ......
+    listen 443 ssl http2;
+    listen [::]:443 ssl http2;
+    # ......
+    location /GunService {
+        if ($request_method != "POST" ) {
+            return 404;
+        }
+        client_max_body_size 0;
+        client_body_timeout 1h;
+        grpc_read_timeout 1h;
+        grpc_pass grpc://127.0.0.1:9000;
+        grpc_set_header X-Real-IP $http_x_forwarded_for;
+        grpc_set_header X-Forwarded-For $proxy_protocol_addr;
+    }
+    # ......
+}
+```