update readme with some instructions

README.md

@@ -5,8 +5,13 @@ MUD game, in rust, so that hopefully it goes fast and doesn't break things.
 Under heavy development. Much is currently unimplemented or not completely
 implemented yet.
 
-API docs can be built with `cargo doc`. Not yet complete, though. Also they are
-available online at
+API docs are available at
 [https://rascul.gitlab.io/rude/rude/index.html](https://rascul.gitlab.io/rude/rude/index.html).
 
-If you really want to, clone the repo and run it with cargo.
+```
+git clone https://gitlab.com/rascul/rude
+cd rude
+sqlite3 rude.db < schema.sql
+cp config.toml.default config.toml
+cargo run
+```