message: docs: fix capitalization
diff: @@ -42,7 +42,7 @@ var ast = recast.parse(code);
  ```
  Now do *whatever* you want to `ast`. Really, anything at all!
  -See [ast-types](https://github.com/benjamn/ast-types) (especially the [def/core.js](https://github.com/benjamn/ast-types/blob/master/def/core.js)) module for a thorough overview of the `ast` api.
  +See [ast-types](https://github.com/benjamn/ast-types) (especially the [def/core.js](https://github.com/benjamn/ast-types/blob/master/def/core.js)) module for a thorough overview of the `ast` API.
  ```js
  // Grab a reference to the function declaration we just parsed.
  var add = ast.program.body[0];
  