Set modules.

src/bootstrap/NumberInput.md

@@ -0,0 +1,17 @@
+Bootstrap component of number input with label with predefined sizes and structure for using in foris forms.
+
+All additional `props` are passed to the `<input type="number">` HTML component.
+
+```js
+import {useState} from 'react';
+const [value, setValue] = useState(42);
+
+<NumberInput
+    value={value}
+    label="Some number" 
+    helpText="Read the small text!"
+    min='33'
+    max='54'
+    onChange={target => setValue(target.value)}
+/>
+```