docs(examples): Add guide on how to create example

jpedroschmitz · João Pedro Schmitz · commit ff0a9dc53a46 · 2021-03-13T23:54:28.000-03:00
diff --git a/examples/README.md b/examples/README.md
@@ -10,3 +10,10 @@ needs, hiding labels, styling error messages, etc.
 | Radio    | [JavaScript](./radio.js) - [TypeScript](./typescript/radio.tsx)       |
 | Textarea | [JavaScript](./textarea.js) - [TypeScript](./typescript/textarea.tsx) |
 | Checkbox | [JavaScript](./checkbox.js) - [TypeScript](./typescript/checkbox.tsx) |
+
+## Add an example
+
+If you'd like to submit an example, make sure it hasn't been proposed yet. To get started,
+create your new example on [CodeSandbox](https://codesandbox.io/), test it and make sure it works as expected. When it's ready, open a PR to add it on this folder (we recommend you create the example for both JavaScript and TypeScript, but that's not required).
+
+Also, don't forget to add a Usage example and the component on the file. So it's super easy to test it out! If it's a React Native example, add an `rn-` prefix to it.
