Set modules.

src/bootstrap/EmailInput.md

@@ -0,0 +1,18 @@
+Bootstrap component of email input with label with predefined sizes and structure for using in foris forms.
+It use built-in browser email address checking. It's only meaningful using inside `<form>`.
+
+All additional `props` are passed to the `<input type="email">` HTML component.
+
+```js
+import {useState} from 'react';
+const [email, setEmail] = useState('Wrong email');
+<form onSubmit={e=>e.preventDefault()}>
+    <EmailInput
+        value={email}
+        label="Some label" 
+        helpText="Read the small text!"
+        onChange={target => setEmail(target.value)}
+    />
+    <button type="submit">Try to submit</button>
+</form>
+```