feat: add readme

Signed-off-by: kjuulh <contact@kjuulh.io>

examples/basic/src/main.rs

@@ -41,7 +41,7 @@ async fn main() -> anyhow::Result<()> {
         },
         session: nefarious_login::session::SessionClap {
             postgresql: PostgresqlSessionClap {
-                conn: Some("postgres://como:somenotverysecurepassword@localhost:5432/como".into()),
+                conn: Some("postgres://nefarious-test:somenotverysecurepassword@localhost:5432/nefarious-test".into()),
             },
         },
     };