Update README

README.md

@@ -1,13 +1,19 @@
 # Redizone: Redis compatible server convert longitude and latitude to timezone name(s).
 
-Build with [redcon.rs] and [tzf-rs].
-
-[redcon.rs]: https://github.com/tidwall/redcon.rs
-[tzf-rs]: https://github.com/ringsaturn/tzf-rs
+Build with [`tidwall/redcon.rs`](https://github.com/tidwall/redcon.rs) and
+[`ringsaturn/tzf-rs`](https://github.com/ringsaturn/tzf-rs).
 
 ```console
+$ redis-cli -p 6380
 127.0.0.1:6380> get_tz 116.3883 39.9289
 Asia/Shanghai
 127.0.0.1:6380> get_tzs 116.3883 39.9289
 1) "Asia/Shanghai"
 ```
+
+See also:
+
+- [`ringsaturn/tzf-sever`](https://github.com/ringsaturn/tzf-server): HTTP&Redis
+  server written in Go
+- [`racemap/rust-tz-service`](https://github.com/racemap/rust-tz-service):
+  "Timezone Rest API"