index templates: assume we run on https. README: example nginx config

Fixes #10

README.md

@@ -105,3 +105,17 @@ header that the client sends. We can still wrap the plain-text page in a single
 We will try as hard as possible to not store any data about our users, and will
 only provide any data when we have the legal obligation to do so.
 
+## Sample `nginx` config
+
+```
+server {
+    location / {
+        root    /var/www/rushlink;
+        proxy_pass http://127.0.0.1:8000;
+        proxy_set_header Host rushlink.local;
+        proxy_set_header X-Forwarded-For $remote_addr;
+        proxy_http_version 1.1;
+    }
+}
+```
+