diff --git a/README.md b/README.md
new file mode 100644
index 0000000..eb4fbe2
--- /dev/null
+++ b/README.md
@@ -0,0 +1,68 @@
+# Riven
+[![Crates.io](https://img.shields.io/crates/v/riven?style=flat-square)](https://crates.io/crates/riven)
+[![Travis CI](https://img.shields.io/travis/com/mingweisamuel/riven?style=flat-square)](https://travis-ci.com/MingweiSamuel/Riven)
+[![unsafe forbidden](https://img.shields.io/badge/unsafe-forbidden-success.svg?style=flat-square)](https://github.com/rust-secure-code/safety-dance/)
+
+Rust Library for the [Riot Games API](https://developer.riotgames.com/).
+
+Rivens's goals are _speed_, _reliability_, and _maintainability_. Riven handles rate limits and large requests with ease.
+Data structs and endpoints are automatically generated from the
+[Riot API Reference](https://developer.riotgames.com/api-methods/) ([Swagger](http://www.mingweisamuel.com/riotapi-schema/tool/)).
+
+Riven currently uses nightly Rust.
+
+## Features
+
+* Fast, asynchronous, thread-safe.
+* Automatically retries failed requests.
+* TFT API Support.
+
+## Usage
+
+```rust
+use riven::RiotApi;
+use riven::consts::Region;
+
+async {
+    // Create RiotApi instance from key.
+    let riot_api = RiotApi::with_key("RGAPI-01234567-89ab-cdef-0123-456789abcdef");
+
+    // Get summoner data.
+    let summoner = riot_api.summoner_v4()
+        .get_by_summoner_name(Region::NA, "잘못").await
+        .expect("Get summoner failed.")
+        .expect("Summoner not found.");
+
+    // Print summoner name.
+    println!("{} Champion Masteries:", summoner.name);
+
+    // Get champion mastery data.
+    let masteries = riot_api.champion_mastery_v4()
+        .get_all_champion_masteries(Region::NA, &summoner.id).await
+        .expect("Get champion masteries failed.")
+        .unwrap();
+
+    // Print champioon masteries.
+    for (i, mastery) in masteries[..10].iter().enumerate() {
+        println!("{: >2}) {: <9}    {: >7} ({})", i + 1,
+            mastery.champion_id.to_string(),
+            mastery.champion_points, mastery.champion_level);
+    }
+}
+```
+Full code in [tests/readme.rs.ignored](./tests/readme.rs.ignored)
+
+Output:
+```text
+잘 못 Champion Masteries:
+ 1) Riven        1219895 (7)
+ 2) Fiora         229714 (5)
+ 3) Katarina      175985 (5)
+ 4) Lee Sin       150546 (7)
+ 5) Jax           100509 (5)
+ 6) Gnar           76373 (6)
+ 7) Kai'Sa         64271 (5)
+ 8) Caitlyn        46479 (5)
+ 9) Irelia         46465 (5)
+10) Vladimir       37176 (5)
+```
diff --git a/src/lib.rs b/src/lib.rs
index aff8243..2184547 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,9 @@
-//! Module docs TODO.
 #![feature(non_exhaustive)]
+#![feature(external_doc)]
+
+#![forbid(unsafe_code)]
+
+#![doc(include = "../README.md")]
 
 mod config;
 pub use config::RiotApiConfig;
diff --git a/tests/readme.rs.ignored b/tests/readme.rs.ignored
new file mode 100644
index 0000000..191023b
--- /dev/null
+++ b/tests/readme.rs.ignored
@@ -0,0 +1,39 @@
+#![feature(custom_test_frameworks)]
+#![test_runner(my_runner)]
+fn my_runner(_: &[()]) { main() }
+
+use riven::RiotApi;
+use riven::consts::Region;
+
+use tokio::runtime::Runtime;
+
+fn main() {
+    let rt = Runtime::new().unwrap();
+
+    rt.block_on(async {
+        // Create RiotApi instance from key.
+        let riot_api = RiotApi::with_key(include_str!("../apikey.txt"));
+
+        // Get summoner data.
+        let summoner = riot_api.summoner_v4()
+            .get_by_summoner_name(Region::NA, "잘못").await
+            .expect("Get summoner failed.")
+            .expect("Summoner not found.");
+
+        // Print summoner name.
+        println!("{} Champion Masteries:", summoner.name);
+
+        // Get champion mastery data.
+        let masteries = riot_api.champion_mastery_v4()
+            .get_all_champion_masteries(Region::NA, &summoner.id).await
+            .expect("Get champion masteries failed.")
+            .unwrap();
+
+        // Print champioon masteries.
+        for (i, mastery) in masteries[..10].iter().enumerate() {
+            println!("{: >2}) {: <9}    {: >7} ({})", i + 1,
+                mastery.champion_id.to_string(),
+                mastery.champion_points, mastery.champion_level);
+        }
+    });
+}