Add a small example

README.md

@@ -5,9 +5,56 @@
 [![Windows Build](https://ci.appveyor.com/api/projects/status/github/loyd/flow2schema?branch=master&svg=true)](https://ci.appveyor.com/project/loyd/flow2schema)
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+## Example
+
+```sh
+$ cat example.js
+```
+```js
+type A<T, K> = {
+    t: T,
+    k: K,
+};
+
+export type X = {
+    a: A<string, boolean>,
+    b: number,
+};
+```
+
+```sh
+$ flow2schema -t json-schema example.js
+```
+
+```json
+{
+    "$schema": "http://json-schema.org/draft-06/schema#",
+    "definitions": {
+        "example::A::string::boolean": {
+            "type": "object",
+            "properties": {
+                "t": {"type": "string"},
+                "k": {"type": "boolean"}
+            },
+            "required": ["t", "k"]
+        },
+        "example::X": {
+            "type": "object",
+            "properties": {
+                "a": {"$ref": "#/definitions/example::A::string::boolean"},
+                "b": {"type": "number"}
+            },
+            "required": ["a", "b"]
+        }
+    }
+}
+```
+
 ## TODO
 * Complete generics support.
 * Errors and warnings.
-* Support "declare".
-* Support commonjs modules.
+* Complete commonjs support.
 * Documentation.
+* Stabilize API.
+* Webpack plugin.
+* Rollup plugin.