add more testdata examples

examples/reverse_proxy/h2o.conf

@@ -0,0 +1,9 @@
+listen:
+  port: 8080
+hosts:
+  "*":
+    paths:
+      /:
+        proxy.reverse.url: "http://localhost:8888"
+        proxy.preserve-host: ON
+        proxy.websocket: ON

examples/reverse_proxy/nginx.conf

@@ -0,0 +1,18 @@
+server {
+  listen 8080;
+  server_name localhost;
+  root /tmp/hydro/public;
+
+  location / {
+    try_files $uri @proxy_to_app;
+  }
+
+  location @proxy_to_app {
+    proxy_pass http://localhost:8888;
+    proxy_http_version 1.1;
+    proxy_set_header Upgrade $http_upgrade;
+    proxy_set_header Connection $connection_upgrade;
+    proxy_set_header X-Real-Host $host;
+    proxy_set_header X-Forwarded-For $remote_addr;
+  }
+}